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HomeMy WebLinkAboutSP 144; San Diego Gas & Electric Co.; Specific Plan (SP) (2)• • City of Carlsbad Planning Department April 30, 1992 Mr. Thomas G. Acuna, Land Planner San Diego Gas & Electric P.O. Box 1831 San Diego, CA 921 1 2-41 50 SUBJECT: SDG&E ENCINA POWER PLANT PROPOSED WASTEWATER FACILITY UPGRADES Dear Mr. Acuna: This letter is in response to your April 22, 1 992 letter requesting Administrative Approval for SDG&E to upgrade its existing wastewater facility located at the Encina Power Plant to comply with revised State of California regulations. The proposal includes the following: 1. Containment Wall - Nc- higher than three (3) feet to be constructed around the perimeter of the existing holding tanks. 2. Concrete Slab - Approximately 3,500 square feet of concrete slab constructed within the area surrounded by the containment wall. 3. Exposure Of Existing Piping - Removal of approximately 200 linear feet of underground piping from its existing location and placing it above ground. The above actions which are reflected on the enclosed plan are hereby being granted administrative approval and do not require any further Planning Department permits. The uses are consistent with and accessory to uses allowed under the current Encina Specific Plan. The Building Department has determined that the proposed three (3) foot high wall will require a Building Permit. It is recommended that you consult directly with the City's Engineering Department to determine if a Grading Permit is required for the proposed work. Any questions regarding this determination should be directed to Don Neu at (61 9) 438-1 1 61 , extension 4446. Sincerely, MICHAEL J. HOLZMILLER Planning Director c: Gary Wayne Robert Green Don Neu DN:lh WATERUP.LTR 2O75 Las Palmas Drive • Carlsbad, California 92OO9-1576 - (619) 438-1161 San Diego Gas & Electric P.O. BOX 1831 • SAN DIEGO, CA 92112-4150 • 619/696-2000 April 22, 1992 FILE NO. Mr. Michael J. Holzmiller Planning Director City of Carlsbad 2075 Las Palmas Drive Carlsbad, CA 92009-1576 SUBJECT: SD6&E ENCINA POWER PLANT/PROPOSED WASTEWATER FACILITY UPGRADES Dear Mr. Holzmiller: Based on my meeting with Don Neu, please accept this letter as SDG&E's official request to receive an Administrative Approval allowing SDG&E to upgrade its existing wastewater facility located at the Encina Power Plant. PROJECT BACKGROUND Effective July 1, 1991, the State of California revised its regulations affecting existing and proposed wastewater treatment facilities. These new regulations have a direct impact on SDG&E's existing facility. Specifically, the new revisions make it mandatory that our wastewater holding tanks be surrounded with a berm or retaining wall to hold contaminated water in the event a tank leaked. The new regulations also require that piping to and from our facility be exposed so that any leaks could be easily detected. A copy of these new regulations are enclosed and highlighted. PROJECT PROPOSAL In order for SDG&E to comply with the new regulations, certain improvements must be added to the facility by September 1, 1993. Attached is a site plan showing the location and type of improvement proposed: 1. Containment Wall - A retaining wall, no higher than 3 feet, needs to be constructed around the perimeter of the existing holding tanks (its location is highlighted in green). [HOLZALTR.D22] Mr. Michael J. Holzmiller Page 2 2. Concrete Slab - Approximately 3500 square feet of concrete slab must be constructed within area surrounded by the containment wall. The purpose of the slab is to prevent seepage in the event of a tank leak (its location is highlighted in orange). 3. Exposure of existing piping - Approximately 200 linear feet of underground piping must be removed from its existing location and placed above ground (its location is highlighted in yellow). Construction of the above improvements will require no grading. Wall foundation, slab and pipe excavation will be done by hand. Jte jig not expect to excavate more than 150 cubic yards. Material excavated will be analyzed to~fteTeTmi=ne~-'Tf" it" is hazardous. Hazardous material will be hauled to a certified treatment center. Clean material will be placed within the already City approved stockpile area of the plant (refer to City stockpile agreement PE 2.91.15.). PERMITTING CONCERNS We believe the proposed excavations will not require a grading permit and that the improvements are consistent with uses allowed under the current Encina Specific Plan. We are unclear as tq_whether a building permit will be required for~tfie""'~ "retaining wallT N;<i'c _\*^~ ~~ ' As for environmental concerns addressed by CEQA, we feel our ~~f /"• proposal .would qualify for exemptions under Section 15301 (a), (b) N yand ff) ; and Section 15304 (f) . In regards to the need for a Coastal Permit, we discussed this issue with Bill Ponder on April 21st. Bill felt that the improvements might qualify for an exemption, but was fairly certain that at least a wavier would be granted. As a follow- up, we are asking him for a written determination. Mr. Holzmiller, that pretty much sums up our proposal. We would appreciate your earliest written response. If there are any questions, please call me at 696-2496. Thank you for your cooperation. Sincerely, •UU*tsr+~ Tom G. Acuna Land Planner cc: Don Neu [HOLZALTR.D22] § 66264.176 BARCLAYS CALIFORNIA CODE OF REGULATIONS Title 22 (b) A containment system shall be designed and operated as follows: (1) a base shall underlie the containers which is free of cracks or gaps and is sufficiently impervious to contain leaks, spills, and accumulated precipitation until the collected material is detected and removed; (2) the base shall be sloped or the containment system shall be other- wise designed and operated to drain and remove liquids resulting from leaks, spills, or precipitation, unless the containers arc elevated or are otherwise protected from contact with accumulated liquids; (3) the containment system shall have sufficient capacity to contain precipitation from at least a 24-hour, 25-year storm plus 10 % of the ag- gregate volume of all containers or the volume of the largest container, whichever is greater. Containers that do not contain free liquids'need not be considered in this determination; (4) run-on into the containment system shall be prevented unless the collection system has sufficient excess capacity in addition to that re- quired in subsection (b)(3) of this section to contain any run-on which might enter the system; and (5) spilled or leaked waste and accumulated precipitation shall be re- moved from the sump or collection area in as timely a manner as is neces- sary to prevent overflow of the collection system. If the collected material is a hazardous waste under chapter 11 of this division, it shall be managed as a hazardous waste in accordance with all applicable requirements of chapters 12 through 16 of this division. If the collected material is dis- charged through apoint source to waters of the United States, it is subject to the requirements of section 402 of the Federal Clean Water Act, as amended (33 U.S.C. section 1342). (c) The owner or operator shall submit to the Department with the application for a hazardous waste facility permit a written statement signed by an independent, qualified professional engineer, registered in California, that indicates that the containment system is suitably designed to achieve the requirements of this section. NOTE- Authority cited: Sections 208,25150 and 25159, Health and Safety Code. Reference: Sections 25150(3), 25159 and 25159.5, Health and Safety Code; 40 CFR Section 264.175. HISTORY 1. New section filed 5-24-91; operative 7-1-91 (Register 91, No. 22). § 66264.176. Special Requirements for Ignitable or Reactive Waste. Containers holding ignitable or reactive waste shall be located at least 15 meters (50 feet) from the facility's property line. NOTE.- Authority cited: Sections 208,25150 and 25159, Health and Safety Code. Reference: Sections 25159 and 25159.5, Health and Safety Code; 40 CFR Section264.176. HISTORY 1. New section filed 5-24-91; operative 7-1-91 (Register 91, No. 22). § 66264.177. Special Requirements for Incompatible Wastes. (a) Incompatible wastes, or incompatible wastes and materials (see Appendix V for examples), shall not be placed in the same container, un- less section 66264.17(b) is complied with. (b) Hazardous waste shall not be placed in an unwashed container that previously held an incompatible waste or material. (c) A container holding a hazardous waste that is incompatible with any waste or other materials transferred or stored nearby in other contain- ers, piles, open tanks, or surface impoundments shall be separated from the other materials or protected from them by means of adike, berm, wall, or other device. NOTE- Authority cited: Sections 208,25150 and 25159, Health and Safety Code. Reference: Sections 25159 and 25159.5, Health and Safety Code; 40 CFR Section 264.177. HISTORY 1. New section filed 5-24-91; operative 7-1-91 (Register 91, No. 22). § 66264.178. Closure. At closure, all hazardous waste and hazardous waste residues shall be removed from the containment system. Remaining containers, liners, bases, and soil containing or contaminated with hazardous waste or haz- ardous waste residues shall be decontaminated or removed. At closure, as throughout the operating period, unless the owner or operator can dem- onstrate in accordance with section 66261.3(e) of this division that the solid waste removed from the containment system is not a hazardous waste, the owner or operator becomes a generator of hazardous waste and shall manage it in accordance with all applicable requirements of chap- ters 12 through 16 of this division. NOTE- Authority cited: Sections 208,25150 and 25159, Health and Safety Code. Reference: Sections 25159,25159.5 and 25245, Health and Safety Code; 40 CFR Section 264.178. HISTORY 1. New section filed 5-24-91; operative 7-1-91 (Register 91, No. 22). Article 10. Tank Systems § 66264.190. Applicability. The requirements of this article apply to owners and operators of facili- ties that use tank systems for transferring, storing or treating hazardous waste except as otherwise provided in subsections (a) and (b) of this sec- tion or in section 66264.1 of this chapter. (a) Tank systems that are used to transfer, store or treat hazardous waste which contains no free liquids and are situated inside a building with an impermeable floor are exempted from the requirements in section 66264.193. To demonstrate the absence or presence of free liquids in the transferred/stored/treated waste, EPA Method 9095 (Paint Filter Liquids Test) as described in 'Test Methods for Evaluating Solid Wastes, Physi- cal/Chemical Methods" (EPA Publication No. SW-846 Third Edition, November 1986) shall be used. (b) Tank systems, including sumps, as defined in section 66260.10, that serve as part of a secondary containment system to collect orcontain releases of hazardous wastes are exempted from the requirements in sec- tion 66264.193(a) of this article. NOTE- Authority cited: Sections 208,25150 and 25159, Health and Safety Code. Reference: Sections 25159 and 25159.5, Health and Safety Code; 40 CFR Section 264.190. HISTORY 1. New section filed 5-24-91; operative 7-1-91 (Register 91, No. 22). § 66264.191. Assessment of Existing Tank System's Integrity. (a) Tanks shall have sufficient shell strength and, for closed tanks, pressure controls (e.g., vents) to assure that they do not collapse or rup- ture. The Department will review the design of the tanks, including the foundation, structural support, seams and pressure controls and seismic considerations. The Department shall require that a minimum shell thick- ness be maintained at all times to ensure sufficient shell strength. Factors to be considered in establishing minimum thickness include the width, height and materials of construction of the tank, and the specific gravity of the waste which will be placed in the tank. In reviewing the design of the tank and approving a minimum thickness, the Department shall rely upon appropriate industrial design standards and other available infor- mation. (b) For each tank system which was in existence on or before July 14, 1986, that does not have secondary containment meeting the require- ments of section 66264.193, the owner or operator shall determine that the tank system is not leaking or is unfit for use. Except as provided in subsection (d) of this section, and in addition to the requirements of sub- section (f) of this section, the owner or operator shall obtain and keep on file at the facility a written assessment reviewed and certified by an inde- pendent, qualified professional engineer, registered in California, in ac- cordance with section 66270.1 l(d), that attests to the tank system's integ- rity by the dates indicated below: (1) January 12, 1988, for tanks containing RCRA hazardous wastes, unless the owner/operator is a conditionally exempt small quantity gener- ator as defined in 40 CFR section 261.5, or is a 100 to 1000 kg per month generator as defined in 40 CFR section 265.201; or Page 748 Tide 22 Environmental Health Standards—Hazardous Waste § 66264.192 (2) July 1, 1992, for tanks containing only non-RCRA hazardous wastes, and tanks containing RCRA hazardous wastes, if the owner/oper- ator is a conditionally exempt small quantity generator or is a 100 to 1000 kg per month generator. (c) This assessment shall determine that the tank system is adequately designed and has sufficient structural strength and compatibility with the waste(s) to be transferred, stored or treated, to ensure that it will not col- lapse, rupture, or fail. At a minimum, this assessment shall consider the following: (1) design standard(s), if available, according to which the tank and an- cillary equipment were constructed; (2) hazardous characteristics of the waste(s) that have he'en and will be handled; (3) existing corrosion protection measures; (4) documented age of the tank system, if available (otherwise, an esti- mate of the age); (5) results of a leakiest, internal inspection, or other tank integrity ex- amination such that (A) fornon-enterable underground tanks, the assessment shall include a leak test that is capable of taking into account the effects of temperature variations, tank end deflection, vapor pockets, and high water table ef- fects, and (B) for other than non—enterable underground tanks and for ancillary equipment, this assessment shall include either a leak test, as described above, or other integrity examination, that is certified by an independent, qualified, professional engineer, registered in California, in accordance with section 66270. ll(d), that addresses cracks, leaks, corrosion, and erosion; and (6) those design requirements and factors listed in subsection (a) of this section. (d) For tank systems that transfer, store or treat materials that become hazardous wastes subsequent to the dates indicated below, this asses- sment shall be conducted within 12 months after the date that the waste becomes a hazardous waste: (1) July 14,1986, for tanks containing RCRA hazardous wastes, un- less the owner/operator is a conditionally exempt small quantity genera- tor as defined in 40 CFR section 261.5, or is a 100 to 1000 kg per month generator as defined in 40 CFR section 265.201; or (2) July 1,1991, for (A) tanks containing only non—RCRA hazardous wastes, and (B) tanks containing RCRA hazardous wastes, if the owner/operator is a conditionally exempt small quantity generator or is a 100 to 1000 kg per month generator. (e) If, as a result of the assessment conducted in accordance with sub- section (b) of this section, a tank system is found to be leaking or unfit for use, the owner or operator shall comply with the requirements of sec- tion 66264.196. (f) Owners or operators of all existing tank systems shall submit to the Department with Part B of the application for a hazardous waste facility permit, a written statement, signed by an independent, qualified profes- sional engineer, registered in California, in accordance with section 66270.11 (d), attesting that the tanks and containment system are suitably designed to achieve the requirements of this article. Nora Authority cited: Sections 208,25150 and 25159, Health and Safety Code. Reference: Sections 25159 and 25159.5, Health and Safety Code; 40 CFR Section 264.191. HISTORY 1. New section filed 5-24-91; operative 7-1-91 (Register 91, No. 22). § 66264.192. Design and Installation of New Tank Systems or Components. (a) Tanks shall have sufficient shell strength and, for closed tanks, pressure controls (e.g., vents) to assure that they do not collapse or rup- ture. The Department will review the design of the tanks, including the foundation, structural support, seams and pressure controls and seismic considerations. The Department shall require that a minim urn shell thick- ness be maintained at all times to ensure sufficient shell strength. Factors to be considered in establishing minimum thickness include the width, height and materials of construction of the tank, and the specific gravity of the waste which will be placed in the tank. In reviewing the design of the tank and approving a minimum thickness, the Department shall rely upon appropriate industrial design standards and other available infor- mation. (b) Owners or operators of new tank systems or components shall ob- tain and submit to the Department, at time of submittal of Part B informa- tion, a written assessment, reviewed and certified by an independent, qu- alified professional engineer, registered in California, in accordance with section 66270.11 (d), attesting that the tank system has sufficient structur- al integrity and is acceptable for the transferring, storing and treating of hazardous waste and that the tanks and containment system are suitably designed to achieve the requirements in this article. The assessment shall show that the foundation, structural support, seams, connections, and pressure controls (if applicable) are adequately designed and that the tank system has sufficient structural strength, compatibility with the waste! s) to be transferred, stored or treated, and corrosion protection to ensure that it will not collapse, rupture, or fail. This assessment, which will be used by the Department to review and approve or disapprove the acceptability of the tank system design, shall also include, at a minimum, the following information: (1) design standard(s) according to which tank(s) and/or the ancillary equipment are constructed; (2) hazardous characteristics of the waste(s) to be handled; (3) for new tank systems or components in which the external shell of a metal tank or any external metal component of the tank system will be in contact with the soil or with water, a determination by a corrosion ex- pert of: (A) factors affecting the potential for corrosion, including but not lim- ited to: 1. soil moisture content; 2. soil pH; 3. soil sulfides level; 4. soil resistivity; 5. structure to soil potential; 6. influence of nearby underground metal structures (e.g., piping); 7. existence of stray electric current; 8. existing corrosion-protection measures (e.g., coating, cathodic pro- tection), and (B) the type and degree of external corrosion protection that are needed to ensure the integrity of the tank system during the use of the tank system or component, consisting of one or more of the following: 1. corrosion—resistant materials of construction such as special alloys, fiberglass reinforced plastic, etc.; 2. corrosion—resistant coating (such asepoxy, fiberglass, etc.) with ca- thodic protection (e.g., impressed current or sacrificial anodes); and 3. electrical isolation devices such as insulating joints, flanges, etc.; (4) for underground tank system components that are likely to be ad- versely affected by vehicular traffic, a determination of design or opera- tional measures that will protect the tank system against potential dam- age; (5) design considerations to ensure that: (A) tank foundations will maintain the load of a full tank; (B) tank systems will be anchored to prevent flotation or dislodgment where the tank system is placed in a saturated zone, or is located within a seismic fault zone subject to the standards of section 66264.18(a); and (C) tank systems will withstand the effects of frost heave; and (6) those design requirements and factors listed in subsection (a) of this section. (c) The owner or operator of a new tank system shall ensure that proper handling procedures are adhered to in order to prevent damage to the sys- tem during installation. Prior to covering, enclosing, or placing a new tank system or component in use, an independent, qualified installation inspector or an independent, qualified, professional engineer, registered Page 749 Regiawr 91. No. 21 5-31-91 § 66264.193 BARCLAYS CALIFORNIA CODE OF REGULATIONS Title 22 in California, either of whom is trained and experienced in the proper in- stallation of tank systems or components, shall inspect the system for the presence of any of the following items: (1) weld breaks; (2) punctures; (3) scrapes of protective coatings; (4) cracks; (5) corrosion; (6) other structural damage or inadequate construction/installation. All discrepancies shall be remedied before the tank system is covered, enclosed, or placed in use. (d) New tank systems or components that are placed underground and that are back filled shall be provided with a backfill material that is a non- corrosive, porous, homogeneous substance and that is installed so that the backfill is placed completely around the tank and compacted to ensure that the tank and piping are fully and uniformly supported. (e) All new tanks and ancillary equipment shall be tested for tightness prior to being covered, enclosed, or placed in use. If a tank system is found not to be tight, all repairs necessary to remedy the leak(s) in the sys- tem shall be performed prior to the tank system being covered, enclosed, or placed into use. (f) Ancillary equipment shall be supported and protected against phys- ical damage and excessive stress due to settlement, vibration, expansion, or contraction. (g) The owner or operator shall provide the type and degree of corro- sion protection recommended by an independent corrosion expert, based on the information provided under subsection (b)(3) of this section, or other corrosion protection if the Department believes other corrosion protection is necessary to ensure the integrity of the tank system during use of the tank system. The installation of a corrosion protection system that is field fabricated shall be supervised by an independent corrosion expert to ensure proper installation. (h) The owner or operator shall obtain and keep on file at the facility written statements by those persons required to certify the design of the tank system and supervise the installation of the tank system in accor- dance with the requirements of subsections (c) through (g) of this section, that attest that the tank system was properly designed and installed and that repairs, pursuant to subsections (c) and (e) of this section, were per- formed. These written statements shall also include the certification statement as required in section 66270.1 l(d) of this division. NOTE: Authority cited: Sections 208, 25150 and 25159, Health and Safety Code. Reference: Sections 25159 and 25159.5, Health and Safety Code; 40 CFR Section 264.192. HISTORY 1. New section filed 5-24-91; operative 7-1-91 (Register 91, No. 22). i § 66264."193t containment and Detection of Releases. (a) In orderto prevent the release of hazardous waste or hazardous con- stituents to the environment, secondary containment that meets the re- quirements of this section shall be provided (except as provided in sub- sections (f) and (g) of this section): (1) for all new tank systems or components, prior to their being put into service; sJ2"Xfor all tank systems which were in existence on or before July 14, 198of which have been used to transfer, store or treat EPA Hazardous Waste Nos. F020, F021, F022, F023, F026 and F027, within two years after the dates indicated below: (A) January 12,1987, for tanks containing RCRA hazardous wastes, unless the owner/operatoris a conditionally exempt small quantity gener- ator as defined in 40 CFR section 261.5, or is a 100 to 1,000 kg per month generator as defined in 40 CFR section 265.201; or (B)July 1, 1991, for tanks containing RCRA hazardous wastes, if the owner/operator is a conditionally exempt small quantity generator or is a 100 to 1,000 kg per month generator, (3) for those tank systems of known and documented age, which were in existence on or before July 14, 1986, within two years after the dates indicated below or when the tank system has reached 15 years of age, whichever comes later: (A) January 12, 1987, for tanks containing RCRA hazardous wastes, unless the owner/operator is a conditionally exempt small quantity gener- ator as defined in 40 CFR section 261.5, or is a 100 to 1,000 kg per month generator as defined in 40 CFR section 265.201; or (B) July 1, 1991, for tanks containing only non-RCRA hazardous wastes, and tanks containing RCRA hazardous wastes, if the owner/oper- ator isaconditionallyexemptsmallquantity generator orisa lOOto 1,000 kg per month generator, (4) for those existing tank systems which were in existence on or be- fore July 14,1986, containing RCRA hazardous wastes (unless the ow- ner/operator is a conditionally exempt small quantity generator as de- fined in 40 CFR section 261.5, or is a 100 to 1,000 kg permonth generator as defined in 40 CFR section 265.201) for which the age cannot be docu- mented, within 8 years of January 12, 1987; but if the age of the facility is greater than 7 years as of January 12, 1987, secondary containment shall be provided by the time the facility reaches 15 years of age, or within 2 years of January 12, 1987, whichever comes later, (5) for those tank systems which are in existence on or before July 1, 1991, containing only non-RCRA hazardous wastes (and for those con- taining RCRA hazardous wastes, if the owner/operatoris a conditionally exempt small quantity generator or is a 100 to 1,000 kg per month genera- tor) for which the age cannot be documented, within 8 years from July 1, 1991; but if the age of the facility is greater than 7 years as of July 1, 1991, secondary containment shall be provided by the time the facility reaches 15 years of age, or within 2 years from July 1,1991, whichever comes later, and (6) for tank systems that transfer, store or treat materials that become hazardous wastes subsequent to the dates indicated below, within the time intervals required in subsections (a)( 1) through (a)(5) of this section, except that the date that a material becomes a hazardous waste shall be used in place of the dates indicated below: (A) January 12, 1987, for tanks containing RCRA hazardous wastes, unless the owner/operator is a conditionally exempt small quantity gener- ator as defined in 40 CFR section 261.5, or is a 100 to 1,000 kg per month generator as defined in 40 CFR section 265.201; or (B) July 1, 1991, for tanks containing only non-RCRA hazardous wastes, and tanks containing RCRA hazardous wastes, if the owner/oper- ator is a conditionally exempt small quantity generator oris a 100 to 1,000 kg per month generator. (b) Secondary containment systems shall be: (1) designed, installed, and operated to prevent any migration of wastes or accumulated liquid out of the system to the soil, groundwater or surface water at any time during the use of the tank system; and (2) capable of detecting and collecting releases and accumulated liq- uids until the collected material is removed. (c) To meet the requirements of subsection (b) of this section, second- ary containment systems shall be at a minimum- (1) constructed of or lined with materials that are compatible with the wastes(s) to be placed in the tank system and shall have sufficient strength and thickness to prevent failure owing to pressure gradients (in- cluding static head and external hydrological forces), physical contact with the waste to which it is exposed, climatic conditions and the stress of daily operation (including stresses from nearby vehicular traffic); (2) provided with a foundation or base underlying the tanks capable of providing support to the secondary containment system, resistance to pressure gradients above and below the system and capable of preventing failure due to settlement, compression or uplift. This base shaU be free of cracks or gaps and sufficiently impervious to contain leaks, spills and accumulated precipitation until the collected material is detected and re- moved; (3) provided with a leak-detection system that is designed and oper- ated so that it will detect the failure of either the primary or secondary containment structure or the presence of any release of hazardous waste Page 750 Register?!. No. 21 5-31-91 Title 22 Environmental Health Standards—Hazardous Waste § 66264.193 or accumulated liquid in the secondary containment system within 24 hours, or at the earliest practicable time if the owner or operator can dem- onstrate to the Department that existing detection technologies or site conditions will not allow detection of a release within 24 hours; and (4) sloped or otherwise designed or operated to drain and remove liq- uids resulting from leaks, spills or precipitation. Spilled or leaked waste and accumulated precipitation shall be removed from the secondary con- tainment system within as timely a manner as is necessary to prevent overflow of the containment system, but within no more than 24 hours, or in as timely a manner as possible to prevent harm to human health and the environment, if the owner or operator can demonstrate to the Depart- ment that removal of the released waste or accumulated precipitation cannot be accomplished within 24 hours and that overflow of the contain- ment system will not occur. (A) If the collected material is a hazardous waste under chapter 11 of this division, it shall be managed as a hazardous waste in accordance with all applicable requirements of chapters 12 through 15 of this division. (B) If the collected material is discharged through a point source to wa- / ters of the United States, the owner or operator shall comply with the re- quirements of sections 301,304, and 402 of the Federal Clean Water Act, as amended (33 U.S.C. sections 1311, 1314 and 1342, respectively). (C) If the collected material is discharged to a Publicly Owned Treat- ment Works (POTW), the owner or operator shall comply with the re- • quirements of section 307 of the Federal Clean Water Act, as amended (33 U.S.C. section 1317). (D) If the collected material is released to the environment, the owner or operator shall comply with the applicable reporting requirements of Title 40 CFR Part 302.' (d) Secondary containment for tanks shall include one or more of the following devices: (1) a liner (external to the tank); (2) a vault; (3) a double-walled tank; or (4) an equivalent device as approved by the Department. (e) In addition to the requirements of subsections (b), (c) and (d) of this section, secondary containment systems shall satisfy the following re- quirements. (1) External liner systems shall be: (A) designed or operated to contain precipitation from a 24-hour, 25-year storm event plus the greater of 10 percent of the aggregate vol- ume of all tanks or 100 percent of the capacity of the largest tank within its boundary, whichever is greater, (B) designed or operated to prevent run—on and infiltration of precipi- tation into the secondary containment system unless the collection sys- tem has sufficient excess capacity, in addition to that required in subsec- tion (e)(l )(A) of this section, to contain run-on and infiltration from a 25-year, 24-hour rainfall event; (C) free of cracks or gaps; and (D) designed and installed to surround the tank completely and to cov- er all surrounding earth likely to come into contact with the waste if the waste is released from the tank(s) (i.e., capable of preventing lateral as well as vertical migration of the waste). \J (2) Vault systems shall be: (A) designed or operated to contain precipitation from a 24—hour, 25-year storm event plus the greater of 10 percent of the aggregate vol- ume of all tanks or 100 percent of the capacity of the largest tank within its boundary, whichever is greater, (B) designed or operated to prevent run—on and infiltration of precipi- tation into the secondary containment system unless the collection sys- tem has sufficient excess capacity, in addition to that required in subsec- tion (e)(2)(A) of this section, to contain run-on and infiltration from a 25-year, 24-hour rainfall event; (C) constructed with chemical-resistant water stops in place at all joints (if any); (D) provided with an impermeable interior coating or lining that is compatible with the waste being transferred, stored or treated and that will prevent migration of waste into the concrete; (E) provided with a means to protect against the formation of and igni- tion of vapors within the vault, if the waste being transferred, stored or treated: 1. meets the definition of ignitable waste under section 66261.21 of this division; or 2. meets the definition of reactive waste under section 66261.23 of this division, and may form an ignitable or explosive vapor, and (F) provided with an exterior moisture barrier or be otherwise de- signed or operated to prevent migration of moisture into the vault if the vault is subject to hydraulic pressure. (3) Double-walled tanks shall be: (A) designed an integral structure (i.e., an innertankcompletely envel- oped within an outer shell) so that any release from the inner tank is con- tained by the outer shell; (B) protected, if constructed of metal, from both corrosion of the pri- mary tank interior and of the external surface of the outer shell; and (C) provided with a built-in continuous leak detection system capable of detecting a release within 24 hours, or at the earliest practicable time, if the owner or operator can demonstrate to the Department, and the De- partment concludes, that the existing detection technology or site condi- tions would not allow detection of a release within 24 hours. (f) Ancillary equipment shall be provided with secondary containment (e.g., trench, jacketing, double-walled piping) that meets the require- ments of subsections (b) and (c) of this section except for: (1) aboveground piping (exclusive of flanges,joints, valves and other connections) that are visually inspected for leaks on a daily basis; (2) welded flanges, welded joints and welded connections, that are vi- sually inspected for leaks on a daily basis; (3) sealless or magnetic coupling pumps and sealless valves, that are visually inspected for leaks on a daily basis; and (4) pressurized aboveground piping systems with automatic shut-off devices (e.g., excess flow check valves, flow metering shutdown devices, loss of pressure actuated shut-off devices) that are visually inspected for leaks on a daily basis. (g) The owner or operator may obtain a variance from the require- ments of this section for existing above-ground tanks in place, if the De- partment finds, as a result of a demonstration by the owner or operator that alternative design and operating practices, together with location characteristics, will prevent the migration of any hazardous waste or haz- ardous constituents into the groundwater or surface water at least as ef- fectively as secondary containment during the active life of the tank sys- tem, or that in the event of a release that does migrate to groundwater or surface water, no substantial present or potential hazard will be posed to human health or the environment. New underground tank systems may not, per a demonstration in accordance with paragraph (g)(2) of this sec- tion, be exempted from the secondary containment requirements of this section. (1) In deciding whether to grant a variance based on a demonstration of equivalent protection of groundwater and surface water, the Depart- ment will consider (A) the nature and quantity of the wastes; (B) the proposed alternate design and operation; (C) the hydrogeologic setting of the facility, including the thickness of soils present between the tank system and groundwater, and (D) all other factors that would influence the quality and mobility of the hazardous constituents and the potential for them to migrate to groundwater or surface water. (2) In deciding whether to grant a variance based on a demonstration of no substantial present or potential hazard, the Department will consid- er. Page 751 91. No. 21 5-31 -91 § 66264.193 BARCLAYS CALIFORNIA CODE OF REGULATIONS Title 22 (A) the potential adverse effects on groundwater, surface water and land quality taking into account: 1. the physical and chemical characteristics of the waste in the tank system, including its potential for migration; 2. the hydrogeological characteristics of the facility and surrounding land, 3. the potential for health risks caused by human exposure to waste constituents, 4. the potential for damage to wildlife, crops, vegetation and physical structures caused by exposure to waste constituents, and 5. the persistence and permanence of the potential adverse effects; (B) the potential adverse effects of a release on groundwater quality, taking into account: 1. the quantity and quality of groundwater and the direction of ground- water flow; 2. the proximity and withdrawal rates of groundwater users; 3. the current and future uses of groundwater in the area; and 4. the existing quality of groundwater, including other sources of con- tamination and their cumulative impact on the groundwater quality, (C) the potential adverse effects of a release on surface water quality, taking into account: 1. the quantity and quality of groundwater and the direction of ground- water flow; 2. the patterns of rainfall in the region; 3. the proximity of the tank system to surface waters; 4. the current and future uses of surface waters in the area and any wa- ter quality standards established for those surface waters; and 5. the existing quality of surface water, including other sources of con- tamination and the cumulative impact on surface water quality; and (D) the potential adverse effects of a release on the land surrounding the tank system, taking into account: 1. the patterns of rainfall in the region; and 2. the current and future uses of the surrounding land. (3) The owner or operator of a tank system, for which a variance from secondary containment has been granted in accordance with the require- ments of subsection (g)( 1) of this section, at which a release of hazardous waste has occurred from the primary tank system but has not migrated beyond the zone of engineering control (as established in the variance), shall: (A) comply with the requirements of section 66264.196, except sub- section (b)(5); and (B) decontaminate or remove contaminated soil to the extent neces- sary to: 1. enable the tank system for which the variance was granted to resume operation with the capability for the detection of releases at least equiva- lent to the capability it had prior to the release; and 2. prevent the migration of hazardous waste or hazardous constituents to groundwater or surface water, and (C) if contaminated soil cannot be removed or decontaminated in ac- cordance with subsection (g)(3)(B) of this section, comply with the re- quirements of section 66264.197(b). (4) The owner or operator of a tank system, for which a variance from secondary containment has been granted in accordance with the require- ments of subsection (g)( 1) of this section, at which a release of hazardous waste has occurred from the primary tank system and has migrated be- yond the zone of engineering control (as established in the variance), shall: (A) comply with the requirements of section 66264.196(b); and (B) prevent the migration of hazardous waste or hazardous constitu- ents to groundwater or surface water, if possible, and decontaminate or remove contaminated soil. If contaminated soil cannot be decontami- nated or removed or if groundwater has been contaminated, the owner or operator shall comply with the requirements of section 66264.197(b); and (C) if repairing, replacing or reinstalling the tank system, provide sec- ondary containment in accordance with the requirements of subsections (a) through (f) of this section or reapply for a variance from secondary containment and meet the requirements for new tank systems in section 66264.192 if the tank system is replaced. The owner or operator shall comply with these requirements even if contaminated soil can be decon- taminated or removed and groundwater or surface water has not been contaminated. (h) The following procedures shall be followed in order to request a variance from secondary containment (1) The Department shall be notified in writing by the owner or opera- tor that the facility intends to conduct and submit a demonstration for a variance from secondary containment as allowed in subsection (g) of this section at least 24 months prior to the date that secondary containment is required to be provided in accordance with subsection (a) of this sec- tion. Additionally, if a variance is sought from the requirements of sec- tion 66264.193(i)(l), to the extent allowed under subsection (i) of this section, the demonstration shall be submitted to the Department with Part B of the permit application. (2) As part of the notification, the owner or operator shall also submit to the Department a description of the steps necessary to conduct the demonstration and a timetable for completing each of the steps. The dem- onstration shall address each of the factors listed in subsection (g)(l) or subsection (g)(2) of this section. (3) The demonstration for a variance shall be completed within 180 days after notifying the Department of an intent to conduct the demon- stration. (4) If a variance is granted under this subsection, the Department will require the permittee to construct and operate the tank system in the man- ner that was demonstrated to meet the requirements for the variance. (i) All tank systems, until such time as secondary containment that meets the requirements of this section is provided, shall comply with the following: (1) subsections (c)(2), (c)(4), (e)(l)(A) or (e)(2)(A) (except for tanks that do not contain free liquids), and (e)(l)(B) or (e)(2)(B); (2) for nonenterable underground tanks, a leak test that meets the re- quirements of section 66264.191 (c)(5) or other tank integrity method, as approved or required by the Department, shall be conducted at least annu- ally; (3) for other than nonenterable underground tanks, the owner or opera- tor shall either conduct a leak test as in subsection (i)(2) of this section or develop a schedule and procedure for an assessment of the overall con- dition of the tank system by an independent, qualified professional engi- neer, registered in California, in accordance with section 66270.1 l(d). The schedule and procedure shall be adequate to detect obvious cracks, leaks, and corrosion or erosion that may lead to cracks and leaks. The owner or operator shall remove the stored waste from the tank, if neces- sary, to allow the condition of all internal tank surfaces to be assessed. The frequency of these assessments shall be based on the material of con- struction of the tank and its ancillary equipment, the age of the system, the type of corrosion or erosion protection used, the rate of corrosion or erosion observed during the previous inspection and the characteristics of the waste being stored or treated; (4) for ancillary equipment, a leak test or other integrity assessment as approved by the Department shall be conducted at least annually; (5) the owner or operator shall maintain on file at the facility a record of the results of the assessments conducted in accordance with subsec- tions (i)(2) through (i)(4) of this section; (6) if a tank system or component is found to be leaking or unfit for use as a result of the leak test or assessment in subsections (i)(2) through (i)(4) of this section, the owner or operator shall comply with the require- ments of section 66264.196. Page 752 Title 22 Environmental Health Standards—Hazardous Waste § 66264.196 NOTE.- Authority cited: Sections 208,25150 and 25159, Health and Safety Code. Reference: Sections 25159 and 25159.5, Health and Safety Code; 40 CFR Section 264.193. HISTORY 1. New section filed 5-24-91; operative 7-1-91 (Register 91, No. 22). § 66264.194. General Operating Requirements. (a) Hazardous wastes or other materials (e.g., treatment reagents) shall not be placed in a tank system if they could cause the tank, its ancillary equipment or the containment system to rupture, leak, corrode, or other- wise fail. (b) The owner or operator shall use appropriate controls and practices to prevent spills and overflows from tank or containment systems. These include at a minimum: (1) spill prevention controls (e.g., check valves, dry disconnect cou- plings); (2) overfill prevention controls (e.g., level sensing devices, high level alarms, automatic feed cutoff, or bypass to a standby tank); and (3) maintenance of sufficient freeboard in uncovered tanks to prevent overtopping by wave or wind action or by precipitation from at least a 24-hour, 25-year storm. (c) The owner or operator shall comply with the requirements of sec- tion 66264.196 if a leak or spill occurs in the tank system. NOT& Authority cited: Sections 208,25150 and 25159, Health and Safety Code. Reference: Sections 25159 and 25159.5, Health and Safety Code; 40 CFR Section 264.194. HISTORY 1. New section filed 5-24-91; operative 7-1-91 (Register 91, No. 22). § 66264.195. Inspections. (a) The owner or operator shall develop and follow a schedule and pro- cedure for inspecting overfill controls and shall inspect the overfill con- trols at least once each operating day to ensure that they are in good work- ing order. (b) The owner or operator shall inspect at least once each operating day. (1) aboveground portions of the tank system, if any, to detect corrosion or releases of waste; (2) data gathered from monitoring and leak detection equipment (e.g., pressure or temperature gauges, monitoring wells) to ensure that the tank system is being operated according to its design; and (3) the construction materials and the area immediately surrounding the externally accessible portion of the tank system, including the sec- ondary containment system (e.g., dikes) to detect corrosion, erosion or signs of releases of hazardous waste (e.g., wet spots, dead vegetation); (4) for uncovered tanks, the level of waste in the tank, to ensure com- pliance with section 66264.194(b)(3). (c) The owner or operator shall inspect cathodic protection systems, if present, according to, at a minimum, the following schedule to ensure that they are functioning properly. (1) The proper operation of the cathodic protection system shall be confirmed within six months after initial installation and annually there- after. (2) All sources of impressed current shall be inspected and/or tested, as appropriate, at least bimonthly (i.e., every other month). (d) The owner or operator shall document in the operating record of the facility an inspection of those items in subsections (a) through (c) of this section. (e) As part of the inspection schedule required in section 66264.15(b), and in addition to the specific requirements of subsection (a) of this sec- tion, the owner or operator shall develop a schedule and procedure for as- sessing the condition of the tank. The schedule and procedure shall be ad- equate to detect cracks, leaks, corrosion or erosion which may lead to cracks or leaks, or wall thinning to less than the thickness required under section 66264.191 (a). Procedures for emptying a tank to allow entry and inspection of the interior shall be established, when necessary, to detect corrosion or erosion of the tank sides and bottom. The frequency of these assessments shall be based on the material of construction of the tank, type of corrosion or erosion observed during previous inspections and the characteristics of the waste being transferred, treated or stored. NOTE: Authority cited: Sections 208,25150 and 25159, Health and Safety Code. Reference: Sections 25159 and 25159.5, Health and Safety Code; 40 CFR Section 264.195. HISTORY 1. New section filed 5-24-91; operative 7-1-91 (Register 91, No. 22). § 66264.196. Response to Leaks or Spills and Disposition of Leaking or Unfit-for-Use Tank Systems. (a) As part of the contingency plan required under this chapter, the owner or operator shall specify the procedures the facility intends to use to respond to tank spills or leakage, including procedures and timing for expeditious removal of leaked or spilled waste and repair of the tank. (b) A tank system or secondary containment system from which there has been a leak or spill, or which is unfit for use, shall be removed from service immediately, and the owner or operator shall satisfy the following requirements. (1) General emergency procedures. The owner or operator shall com- ply with applicable requirements of section 66264.56 of this division. (2) Cessation of use; prevention of flow or addition of wastes. The owner or operator shall immediately stop the flow of hazardous waste into the tank system or secondary containment system and inspect the system to determine the cause of the release. (3) Removal of waste from tank system or secondary containment sys- tem. (A) If the release was from the tank system, the owner/operator shall, within 24 hours after detection of the leak or, if the owner/operator dem- onstrates that it is not possible, at the earliest practicable time, remove as much of the waste as is necessary to prevent further release of hazardous waste to the environment and to allow inspection and repair of the tank system to be performed. (B) If the material released was to a secondary containment system, all released materials shall be removed within as timely a manner as is necessary to prevent overflow of the containment system, but within no more than 24 hours, or in as timely amanner as is possible to prevent harm to human health and the environment if the owner or operator provides the demonstration required by section 66264.193(c)(4). (4) Containment of visible releases to the environment. The owner/op- erator shall immediately conduct a visual inspection of the release and, based upon that inspection: (A) prevent further migration of the leak or spill to soils or surface wa- ter, and (B) remove, and properly dispose of, any visible contamination of the soil or surface water. (5) Notifications, reports. (A) Any release to the environment, except as provided in subsection (b)(5)(B) of this section, shall be reported to the Department within 24 hours of its detection. (B) A leak or spill of hazardous waste is exempted from the require- ments of subsection (b)(5) of this section, but is not exempt from the re- quirements of section 66264.56, if it is: 1. less than or equal to a quantity of one (1) pound, and 2. immediately contained and cleaned up. (C) Within 30 days of detection of a release to the environment, a re- port containing the following information shall be submitted to the De- partment 1. likely route of migration of the release; 2. characteristics of the surrounding soil (soil composition, geology, hydrogeology, climate); 3. results of any monitoring or sampling conducted in connection with the release (if available). If sampling or monitoring data relating to the release are not available within 30 days, these data shall be submitted to the Department as soon as they become available; 4. proximity to downgradient drinking water, surface water, and popu- lated areas; and 5. description of response actions taken or planned. Page 753 Register?). No. 21 5-31-91 § 66264.197 BARCLAYS CALIFORNIA CODE OF REGULATIONS Title 22 (6) Provision of secondary containment, repair, or closure. (A) Unless the owner/operator satisfies the requirements of subsec- tions (b)(6)(B) through (D) of this section, the tank system shall be closed in accordance with section 66264.197. (B) If the cause of the release was a spill that has not damaged the integ- rity of the system, the owner/operator may return the system to service as soon as the released waste is removed and repairs, if necessary, are made. (C) If the cause of the release was a leak from the primary tank system into the secondary containment system, the system shall be repaired prior to returning the tank system to service. . • (D) If the source of the release was a leak to the environment from a component of a tank system without secondary containment, the owner/ operator shall provide the component of the system from which the leak occurred with secondary containment that satisfies the requirements of section 66264.193 before it can be returned to service, unless the source of the leak is an aboveground portion of a tank system that can be in- spected visually. If the source is an aboveground component that can be inspected visually, the component shall be repaired and may be returned to service without secondary containment as long as the requirements of subsection (b)(7) of this section are satisfied. If a component is replaced to comply with the requirements of this subsection, that component shall satisfy the requirements for new tank systems or components in sections 66264.192 and 66264.193. Additionally, if a leakhas occurred in any por- tion of a tank system component that is not readily accessible for visual inspection (e.g., the bottom of an inground or onground tank), the entire component shall be provided with secondary containment in accordance with section 66264.193 prior to being returned to use. (7) Certification of major repairs. If the owner/operator has repaired a tank system in accordance with subsection (b)(6) of this section, and the repair has been extensive (e.g., installation of an internal liner, repair of a ruptured primary containment or secondary containment vessel), the tank system shall not be returned to service unless the owner/operator has obtained a certification by an independent, qualified, professional engi- neer, registered in California, in accordance with section 66270. ll(d), that the repaired system is capable of handling hazardous wastes without release for the intended life of the system. This certification shall be sub- mitted to the Department within seven days after returning the tank sys- tem to use. NOTE: Authority cited: Sections 208, 25150 and 25159, Health and Safety Code. Reference: Sections 25159 and 25159.5, Health and Safety Code; 40 CFR Section 264.196. HISTORY 1. New section filed 5-24-9!; operative 7-1-91 (Register 91, No. 22). § 66264.197. Closure and Post-Closure Care. (a) At closure of a tank system, the owner or operator shall remove or decontaminate all waste residues, contaminated containment system components (liners, etc.), contaminated soils, and structures and equip- ment contaminated with waste, and manage them as hazardous waste, un- less section 66261.3(e) of this division applies. The closure plan, closure activities, cost estimates forclosure, and financial responsibility for tank systems shall meet all of the requirements specified in articles 7 and 8 of this chapter. (b) If the owner or operator demonstrates that not all contaminated soils can be practicably removed or decontaminated as required in sub- section (a) of this section, then the owner or operator shall close the tank system and perform post-closure care in accordance with the closure and post-closure care requirements that apply to landfills section 66264.310. In addition, for the purposes of closure, post-closure, and Financial re- sponsibility, such a tank system is then considered to be a landfill, and the owner or operator shall meet all of the requirements for landfills spe- cified in articles 7 and 8 of this chapter. (c) If an owner or operator has a tank system that does not have second- ary containment that meets the requirements of section 66264.193(b) through (f) and has not been granted a variance from the secondary con- tainment requirements in accordance with section 66264.193(g), then: (1) the closure plan for the tank system shall include both a plan for complying with subsection (a) of this section and a contingent plan for complying with subsection (b) of this section; (2) a contingent post-closure plan for complying with subsection (b) of this section shall be prepared and submitted as part of the permit appli- cation; (3) the cost estimates calculated for closure and post-closure care shall reflect the costs of complying with the contingent closure plan and the contingent post-closure plan, if those costs are greater than the costs of complying with the closure plan prepared for the expected closure under subsection la) of this section; (4) financial assurance shall be based on the cost estimates in subsec- tion (c)(3) of this section; (5) for the purposes of the contingent closure and post-closure plans, such a tank system is considered to be a landfill, and the contingent plans shall meet all of the closure, post-closure, and financial responsibility re- quirements for landfills under articles 7 and 8 of this chapter. NOTE: Authority cited: Sections 208,25150 and 25159, Health and Safety Code. Reference: Sections 25159 and 25159.5, Health and Safety Code; 40 CFR Section 264.197. HISTORY 1. New section filed 5-24-91; operative 7-1-91 (Register 91, No. 22). § 66264.198. Special Requirements for Ignitable or Reactive Wastes. (a) Ignitable or reactive waste shall not be placed in tank systems, un- less: (1) the waste is treated, rendered, or mixed before or immediately after placement in the tank system so that (A) the resulting waste, mixture, or dissolved material no longer meets the definition of ignitable or reactive waste under sections 66261.21 or 66261.23 of this division, and (B) section 66264.17(b) is complied with; or (2) the waste is transferred, stored or treated in such a way that it is pro- tected from any material or conditions that may cause the waste to ignite or react; or (3) the tank system is used solely for emergencies. (b) The owner or operator of a facility where ignitable or reactive waste is transferred, stored or treated in a tank shall comply with the re- quirements for the maintenance of protective distances between the waste management area and any public ways, streets, alleys, or an adjoin- ing property line that can be built upon as required in Tables 2-1 through 2-6 of the National Fire Protection Association' s "Flammable and Com- bustible Liquids Code," (1981), (incorporated by reference, see section 66260.11). NOTE: Authority cited: Sections 208,25150 and 25159, Health and Safety Code. Reference: Sections 25159 and 25159.5, Health and Code; 40 CFR Section 264.198. HISTORY 1. New section filed 5-24-91; operative 7-1-91 (Register 91, No. 22). § 66264.199. Special Requirements for Incompatible Wastes. (a) Incompatible wastes, or incompatible wastes and materials, shall not be placed in the same tank system, unless section 66264.17(b) is com- plied with. (b) Hazardous waste shall not be placed in a tank system that has not been decontaminated and that previously held an incompatible waste or material, unless section 66264.17(b) is complied with. NOTE Authority cited: Sections 208,25150 and 25159, Health and Safety Code. Reference: Sections 25159 and 25159.5, Health and Safety Code; 40CFR Section 264.199. HISTORY 1. New section filed 5-24-91; operative 7-1-91 (Register 91, No. 22). Page 754 Reshttr91. No. 215-31-91 City of Carlsbad Planning Department April 30, 1992 Mr. Thomas G. Acuna Land Planner San Diego Gas & Electric P.O. Box 1831 San Diego, CA 92112-4150 SUBJECT: SDG&E MULCHYARD PROPOSAL FOR ENCINA POWER PLANT Dear Mr. Acuna: City staff has reviewed your proposal for SDG&E to operate a Mulchyard at its Encina Power Plant to determine what permits would be necessary. We agree that the proposed use has many benefits. In addition, the location you propose for the use would appear to prevent adjacent properties from being impacted by noise or dust generated by the grinder. Specific Plan 144 for the SDG&E Encina Power Plant and the numerous amendments approved to the plan have been reviewed. The proposed use was not considered in the Specific Plan. We have determined that a Minor Amendment to Specific Plan 144 would be required to be approved to permit the Mulchyard proposal. This determination is consistent with the required Minor Amendment to the specific plan approved by the Planning Commission on July 19, 1989 allowing the construction of six wastewater treatment tanks and accessory facilities to replace six wastewater ponds. This proposal could also be considered through a Precise Development Plan application for the property which has been discussed by representatives of SDG&E and the City to replace the existing Specific Plan. Should you have any questions regarding this determination or the application requirements for a Minor Specific Plan Amendment I can be reached at 438-1161, extension 4446. Sincerely, DON NEU Senior Planner c: Michael Holzmiller Gary Wayne Robert Green DN:lh Mulch.Kr 2O75 Las Palmas Drive - Carlsbad, California 92OO9-1576 • (619) 438-1161 San Diego Gas & Electric P.O. BOX 1831 • SAN DIEGO, CA 92112-4150 • 619/696-2000 April 16, 1992 FILE NO. Mr. Don Neu Senior Land Planner City of Carlsbad 2075 Las Palmas Drive Carlsbad, CA 92009-1576 SUBJECT: SDG&E MULCHYARD PROPOSAL FOR ENCINA POWER PLANT Dear Mr. Neu: Thank you for meeting with me this past Monday. I appreciated your candor and cooperation. As a follow-up, I would like to use this letter to request a written determination of what permits would be necessary for SDG&E to operate a Mulchyard at its Encina Power Plant. PROJECT BACKGROUND SDG&E currently has a program to recycle tree trim material (greenwaste) into a valuable ground cover. The greenwaste is a result of powerline maintenance. The recycling process involves placing the greenwaste through a grinder so that it can be reduced to a smaller size. The resulting material is then stockpiled until it can be sold to landscape companies. The benefits of this operation are clear. SDG&E saves by not having to pay dump fees and the local landfills benefit by not having to provide valuable space. PROJECT REQUIREMENTS AND OPERATIONAL CHARACTERISTICS Our basic criteria for selecting a site is that it be compatible with the surrounding uses, preferably within an industrial zone, located far enough away from residential uses so that noise will not be a nuisance. Other specific needs and operational characteristics are as follows: [DNEUALTR.D16] Mr. Don Neu April 16, 1992 Page 2 • Processing would occur about 10 days each month between the hours of 8:00 a.m. and 4:00 p.m. • Approximately 21,000 cubic yards of material would be processed annually. • Average daily trips into the site would be 3 ADT per day. • The operation does not require soil amendments. • The grinding machine is mounted to a semi-trailer bed. It is portable and requires no building. It operates at about 73 db at 100 feet from the source and 53 db at 500 feet. • The resulting product is usually delivered by SDG&E, but buyers do occasionally pick it up themselves. • 5 to 8 acres are needed to run an efficient operation. • The material would be stored in piles with the dimensions of 8' high x 20' wide x 60' long. • No odors are emitted. PROJECT PROPOSAL Attached is an aerial photo of the power plant. The area that SDG&E is interested in utilizing is the 5 acres outlined in orange. The site is currently unused. The proposed operation would require no building improvements nor grading, however, it is probable that we would seek permission to demolish the two existing dilapidated store rooms. In terms of land use compatibility with the surrounding uses, we feel the site is a good choice; to the west is our power plant and the railroad; to the east is interstate 5 and agricultural lands; to the north are plant operations; and to the south is the unused 6 acre SDG&E tourist/commercial parcel. All of these surrounding uses offer good noise and visual barriers. Finally, since the mulch [DNEUALTR.D16] Mr. Don Neu April 16, 1992 Page 3 material is the direct result of our utility operation (tree trim material from power line maintenance), we feel that a mulchyard operation would be consistent with uses allowed by the site's zoning designation of public utility. Don, I think that pretty much covers what we went over. If possible, I would appreciate a reply by May 1, 1992. Please give me a call at 696-2496, if you have any questions. Sincerely, UL>0)W*4 (r- Thomas G. Acuna Land Planner TGA:kmd cc: Michael Holzmiller Planning Director [DNEUALTR.D16] • * SD6&E EXPANSION PROPOSAL 4/13/92 Welcome to the archaeology There is nothing in(Shis fiT^ because the volume of paper and related materials would fill this file 50-times over. Also this was not a traditional development project and the file tabs are inappropriate for it. What was it about? In December 1989, SDG&E made a surprise announcement to the City Council that it was applying to the California Energy Commission (CEC) to begin the process to evaluate the feasibility of expanding the Encina Power Plant. Encina was one of five sites to be simultaneously evaluated. This process is known as a Notice of Intention (NOI) (to file for permit processing). The NOI is a combined engineering review/environmental review process. CEQA does not pertain to power plant expansions greater than 50 MW. It is a 1-2 year process. The City Council assigned three staff to represent the City's interests in this NOI process: Ron Ball (Assistant City Attorney), Jim Hagaman (Research Manager) and Dennis Turner (Principal Planner). Although the City officially maintained a neutral posture in the process, there was great concern that its interests would be compromised by the expansion. Several strategies were immediately undertaken: 1. Implement an emergency ordinance to preclude any expansion to the facilities subject to Specific Plan 144 (the whole of the 640 acre SDG&E ownership). This ordinance was extended twice. 2. Hire special legal counsel and engineering/environmental consultants to assist in effective participation in the complex NOI process. Jackson, Tufts, Cole (Alan Thompson) become the legal counsel; Tetra Tech became the engineering, environmental consultant. 3. Begin studies on the "appropriateness" of the existing land use designation and zoning of the 640 acre site, with an eye to changing the existing Public Utilities designations. Tetra Tech was hired to prepare an EIR evaluating a half dozen land use alternatives. (See files GPA 90-1 and EIR 90-2 Encina Power Plant, also.) Bottom line After nearly two years (and the expenditure of over $200,000 by the City and hundreds of staff hours), SDGE&E first was granted an "indefinite continuance" for half a year, then finally withdrew its application from the CEC. The company was working on a new "precise plan" (Carlsbad permit) for the power plant site as this note was written. To begin your archaeological dig... Each of the three assigned staff members have their own caches of files. In Planning: 1. 2. 3. 4. 5. The original NOI of SDG&E is contained in seven(!) three- inch, white binders in the department library. An eighth white binder in the same place contains most of the subsequent SDG&E official responses to requests for technical information made by the numerous parties in the process, including the requests of Carlsbad. There is a drawer in a five-drawer file cabinet in Dennis Turner's office labeled "SDG&E", which is full of files related to this project. Some of this material is labeled "confidential - attorney/client privilege" and is not available to the public. There is some duplication in these file, and mixing of NOI stuff with EIR stuff. Also there are a couple of unofficial files on related SDG&E permit activity the company tried to initiate in the same period. Over the course of the project, lead was temporarily transferred from Dennis to Senior Planner Steve Griffen (who left the City soon thereafter) and then it came back to Dennis Turner. Thus, some of the duplication and intermixing of stuff. There are two 3-inch white binders (un-labeled) containing correspondence and other materials on a book shelf in Dennis' office. The originalC^pecific Plan 14^) (including amendments a - d [or so]) should be consulted for related power plant history. These files take up about three linear feet in the official files. The EIR 90-2 file should be consulted. It contains one copy of the draft EIR (it was never circulated - work was terminated soon after the NOI continuance). Several other copies are in the store room. Also see the GPA 90-1 file. Good Luck! City of Carlsbad March 20, 1991 Planning Department Mr. D.S. Siino SDG&E Po Box 1831 San Diego, CA92112 RE: ENCINA POWER PLANT MODIFICATIONS Dear Mr. Siino, This letter is in response to your letter dated February 28, 1 991 , addressed to Dennis Turner, in which you request that the Planning Department administratively approve modifications to the entry to the above site. Ordinance NS 1 1 1 adopted on January 23, 1 991 , limited improvements to the above facility. The accompanying agenda bill (copy attached) specifically noted that "change(s) to the existing entrance and guard shack" will be subject to a major amendment to the Specific Plan and review of cumulative impacts of previous minor amendments. Based on this the City will not be able to administratively approve the gate revision, and a Specific Plan Amendment will be necessary for this proposal. You may also wish to consider submitting any other changes you may be contemplating at this facility in conjunction with the major amendment for the entry. Based on the information provided, demolition of the warehouse would not require a planning application, however, you should check with the City Building Department to determine whether any other permits are necessary. Permits may, of course, be necessary for subsequent uses of or construction on the warehouse site. I have enclosed a copy of Ordinance NS 1 1 1 and draft specific plan requirements. If you have any questions regarding the processing of your application please contact me at 438-1 1 61 , extension 4442. Very truly yours, ROBERT GREEN Principal Planner c: M. Holzmiller G. Wayne D. Turner A. Landers RG:km PowerPln.ltr 2O75 Las Palmas Drive • Carlsbad, California 92OO9-4859 • (619)438-1161 HAND DELIVERED San Diego Gas & Electric P.O. BOX 1831 • SAN DIEGO, CA 92112 • 619/696-2000 February 28, 1991 FILENO Mr. Dennis Turner Principal Planner City of Carlsbad 2075 Las Palmas Drive Carlsbad, CA 92009-4859 SUBJECT: ENCINA POWER PLANT: BUILDING DEMOLITION AND MAIN GATE ENTRANCE MODIFICATIONS Mr. Tafler: This letter will provide information on two planned projects at Encina Power Plant. It also serves as our request for a determination as to whether these projects are in compliance with existing Specific Plan 144-C and Ordinance NS-111 (Moratorium Ordinance). The first project is the demolition of an existing warehouse structure located on the site of the Northcoast Operations Center. No new construction or use is intended for the site at this time. The City's Building Department has requested that the structure be demolished because it is infested with termites. It's precise location on the operations center site is shown on the attached copy of an aerial photograph. The second project involves the modification of the power plant entrance on Carlsbad Boulevard to improve the safety of this access point. Currently, large vehicles making deliveries to the site during peak travel periods sometimes cause traffic to backup on Carlsbad Boulevard because the absence of a vehicle "stacking" area between Carlsbad Boulevard and our security guard station. This condition has existed since the recent widening of Carlsbad Boulevard. The installation of a 75 foot "stacking lane" or throat on the plant site is proposed [TURNALTR.B28] Mr. Dennis Turner February 28, 1991 Page 2 to eliminate this safety problem. This solution will also necessitate the installation of an auxiliary guard station at the end of the throat to insure adequate security during peak traffic periods. The location of these improvements is shown on the attached exhibit. The 75 foot throat area will reguire the installation of approximately 175 feet of new 8-foot high chain link fencing and a new automatic sliding gate as shown on the exhibit. The auxiliary guard station will be a pre-fab building having 10' x 10'x 81 dimensions. An illustration of the station is attached including a basic description of other building features. It will be built on a concrete slab. The existing guard station on the exhibit will be maintained since it contains kitchen and rest room facilities for the security guards and will still be used during non-peak traffic periods. No additional security guards are required as a result of this needed safety improvement. The existing and newly proposed additional guard station are not visible from any point along Carlsbad Boulevard other than at the entrance due to existing mature landscaping. (See attached photographs.) It is our belief that the planned projects are consistent with existing Specific Plan 144-C and Ordinance NS-111. Building and Coastal Development Permits may be necessary for the fencing concrete slab and guard station. A signature line is provided at the bottom of this letter. A signature by the properly authorized City representative will indicate concurrence with SDG&E's belief that the proposed projects are consistent with the above noted plan and ordinance. A determination of concurrence will also trigger the forwarding of an amended version of drawing M661 showing the deletion of the warehouse and the addition of the new vehicle stack area and auxiliary guard station. [TURNALTR.B28] Mr. Dennis Turner February 28, 1991 Page 3 Please call me at 696-2410 if you have any questions regarding this request or the above information. Sincerely, David S. Siino Senior Land Planner DSS : kmd Attachments cc: Paul O'Neal, SDG&E Agreed to and Accepted: Title: Date : [TURNALTR.B28] San Diego Gas & Electric P.O. BOX 1831 • SAN DIEGO, CA 92112 • 619/696-2000 January 25, 1991 FILENO Mr. Dennis Turner Principal Planner City of Carlsbad 2075 Las Palmas Drive Carlsbad, California 92009-4859 Re: ENCINA SPECIFIC PLAN CHRONOLOGY Dear Mr. Turner: Attached is a chronology of events for the Encina Specific Plan beginning in 1971, the year of its adoption. The chronol- ogy includes amendments to the Specific Plan, administrative determinations of consistency with the plan, various related permit approvals for uses, and other noteworthy determinations or regulatory decisions that have been made with regard to the 680 acre Specific Plan area. Our review of files continues and we may discover additional approvals, determinations or events that warrant incorporation into the chronology. These will be forwarded to your attention when they will serve to improve or clarify the city's under- standing of the Specific Plan's history. Our suggestion is that you take a few days to review the chronology. Then, at your request, we can meet to review/ discuss the information as well as respond to guestions city representatives may have about specific events. The Specific Plan maps/exhibits noted in the chronology will be brought to the meeting as we know there is also great interest in this information. [TURNALTR.A25] Mr. Dennis Turner January 8, 1991 Page 2 Please call me at 696-2410 or Paul O'Neal at 438-6111 if you have any questions or need additional information regarding this matter. Sin David S. siino Senior Land Planner Land Planning & Permits DSS:gro Enclosure cc: Michael Holzmiller, Planning Director w/attachment Ron Ball, Assistant City Attorney w/attachment Paul O'Neal, SDG&E w/attachment [TURNALTR.A25] \l-\1AO City of Carlsbad Planning Department December 11, 1990 Mr. David Siino, Senior Planner Land Planning And Permits SDG&E P.O. Box 1831 San Diego, CA 92112 SUBJECT: REPLACEMENT EXHIBIT FOR DEMINERALIZER REGENERATION TANK Dave: Thank you for submitting the replacement exhibit, now correctly showing the placement of structures as requested by SDG&E and approved by the Planning Commission. In the future, please always submit exhibits that correctly show the most recent approvals. It saves time for everyone concerned. The exhibit has been placed in the file for the Specific Plan 144 record. If this was the last condition requiring fulfillment, you are now authorized to pursue building permits. Sincerely, Dennis A. Turner Principal Planner c: Ron Ball Jim Hagaman 2O75 Las Palmas Drive • Carlsbad, California 92OO9-4859 • (619)438-1161 - 9a City of Carlsbad Planning Department November 29, 1990 Mr. David Siino, Senior Planner Land Planning and Permits SDG&E P.O. Box 1831 San Diego, CA 92112 SUBJECT: ENCINA POWER PLANT DEMINERALIZER REGENERATION TANK This department has reviewed your letter of November 20, 1990, regarding the proposed demineralizer regeneration tank. Based upon your letter, it appears that the tank is consistent with the approved construction of plant needed to complete the replacement of the old in-ground wastewater ponds, an activity conditioned and authorized by the Planning Commission on July 19, 1989, via Resolution 2859. (copy attached). This office understands that the installation of the proposed tank will support only the existing plant, and will in no way facilitate expanded generating capacity at either the existing units 1-5 or future power generating units. With this understanding, installation of the tank would not be subject to Ordinance NS-111, establishing an emergency moratorium on expansion activities at the Encina Plant. Subject to satisfying all conditions contained in Planning Commission Resolution 2859 and obtaining all necessary and proper permits from the City and any other agencies with jurisdiction in the matter, SDG&E is hereby authorized to proceed with the project described as: Demineralizer Regeneration Tank; to consist of a fiberglass tank 18 feet in diameter and 28 feet high, to be located directly adjacent to the east side of the power plant structure near the stack as shown on the submitted exhibit. The tank will receive wastewater from the power plant demineralization unit prior to its discharge to the new wastewater tanks. 2O75 Las Palmas Drive • Carlsbad, California 92OO9-4859 • (619) 438-1161 Mr. David Siino, Senior Planner November 29, 1990 Page 2 One final note: the exhibit submitted with your cover letter (drawing M-661, revision A, dated June 1986) has not been correctly revised to show the removal of the six wastewater ponds, the construction of the replacement wastewater tanks, or the demineralizer tank. Consequently, this exhibit would not appear to satisfy conditions 2 and 3 contained in Planning Commission Resolution 2859. Prior to the issuance of building permits it will be necessary to submit to this department a corrected drawing showing all of the changes implemented since 1986. This revised drawing will be entered into the official file on Specific Plan 144 and is necessary to satisfy the Planning Commission's conditions and to record all of the previously authorized changes. If you have any questions, please contact me at 438-1161, extension 4443. Sincerely, DENNIS A. TURNER Principal Planner c: Ron Ball Jim Hagaman DAT:lh encina.ltr San Diego Gas & Electric P.O. BOX 1831 • SAN DIEGO, CA 92112 • 619/696-2000 FILE NO.April 17, 1990 Mr. Dennis Turner Principle Planner City of Carlsbad 2075 Las Palmas Dr. Carlsbad, CA 92010 Subject: Encina Power Plant Shift Supervisor Office Enlargement Dear Dennis: This letter is a follow-up to our recent telephone conversation regarding our need to enlarge an existing shift supervisor office located within the power plant building. The existing office is approximately 12' x 22' and we need to increase it to 22' x 25' to accommodate increased storage and equipment requirements and some minor convenience improvements. The office is now used by four shift supervisors and seven relief supervisors for meetings on power plant operation matters and as a lunch area. There will be no change to this manpower condition. It also houses a desk and typewriter, file cabinets, a photocopier, a computer, and storage space for technical training manuals. In addition, several file cabinets containing tools are located outside of the office. Our preference is to have these secured inside the office where there use can be controlled by the shift supervisor. Our increased storage and equipment needs include additional file cabinets, technical manual storage and special tool storage, and additional space for two computers for operational and communication needs. Proposed working convenience improvements include the installation of a counter area for a sink, two stove burners and a microwave oven. We believe that the proposed office enlargement is not inconsistent with the January 23rd, 1990 City Council Ordinance (NS-108) prohibiting the expansion of gas and electric utility facilities. The proposed ordinance does not affect SDG&E's ability to operate and maintain its existing power plant and other existing facilities including the remodelling of interior Mr. Dennis Turner -2- April 17, 1990 spaces and maintenance, repair and replacement of existing facilities subject to staff's consideration of the possible need for any city permits. The needed enlargement constitutes a minor alteration to an existing use to improve operational efficiency and working conditions in support of operating and maintenance functions at the power plant. It does not increase the size of the power plant building nor does it result in any significant impact to city facilities such as water, sewer, transportation networks, etc. It is our belief that no amendment of the existing specific plan is necessary given the extent and nature of the proposed project. Your signature on the signature line provided at the bottom of this letter will indicate the city's agreement with this determination. We do recognize that a building permit will be required for the project. Please call me at 696-2410 if you have questions regarding the above information. Sincerely, David S. Siino Senior Land Planner DSSrph DENNIS TURNER Principal Planner 12/15/89 To: Ron Ball, City Attorney's Office From: Dennis Turner, Planning Department Subject: History of SDG&E Encina Plant Development Attached are two versions of my gleanings from the Planning Department's files: 1) A chronological summary of major events, and 2) An annotated chronology of major events. The entire history is recorded in ten not-too-well-organized file folders. Much of the history is concerned with debate over the original specific plan and construction approvals or the later proposal for construction of the single smokestack, plus the dialog associated with the issues of air quality testing and monitoring. The history I've assembled for you focuses principally on approvals for construction of the plant and its accessory facilities. I did not detail the battles over air quality testing and monitoring, or processing of environmental documents, battles accounting for much of the files' bulk. In a letter to your office dated June 27, 1989, Michael Holzmiller attached a listing of building permits and minor amendments associated with the plant. I have found documentation for most of these in the our files. However, there were a few for which I did not. Almost all of these cases are indicated in Michael's list as building permit approvals. In the listing I've prepared for you, I have included these items with the notation that I did not find documentation in Planning Department files. Perhaps a review of the Building Department's files should be conducted to verify these items and to determine if perhaps there are others. I would be happy to assist in this review. The only reason I didn't pursue it at this time was so as to provide you with what was relatively easy to find as quickly as possible. Please call if you have any questions (x 4443). cc: M. Holzmiller G. Wayne SDGfcE Eflcina Power Plant History (SuMury) 1. 4/6/71: Ord 9268 creates the P-U (Public Utility) zone 2. 6/22/71 PC recomm to Council to rezone Encina site to P-U (PC res 711) 3. 8/3/71: Council Ord. 9279 to adopt a specific plan for Encina Plant 4. 12/4/73: Ordinance 9372 incorporates an amended specific plan (SP-144) 5. 5/75?: Fuel tank installation (building permit). 6. 12/17/75 Meeting on SDG&E funding of road improvements. 7. 5/4/76: Ord 9456 amends Ord 9279, requires air monitoring of 400' stack (SP-144(B)) 8. 5/18/76: CC motion and later agreement to deed beaches to state. 9. 5/3/77: Ord 9481 to build water treatment facility and maint. bldg (SP-144 (O) 10. 6/77: Two-story 50* x 16' control room built (building permit). 11. 11/30/77 Council "files" SDG&E request for final building permit to operate the stack. 12. 2/8/78: Council Res (5302) finding participate fallout problem is solved. 13. 2/28/78: SDG&E requests suspending work on SP-144 (D), connection of Unit 5 to stack. 14. 1/10/80: Move maint. bldg, expand switching substation, driveway (staff author) 15. 6/82: Expansion of distribution substation (approved by staff). 16. 10/9/84; New 6,168 sq.ft. admin building added (approved by staff). 17. 7/85: Remodel of electrical shop (building permit). 18. 12/85: Lunch room remodel (building permit). 19. 12/10/85: Letter from SDG&E, re: Carlsbad Blvd widening/access to Encina. 20. 1/86: Storeroom and repair facility remodel added (building permit) Pagel 21. 2/86 Application to amend. SP-144(E) (50,000 sq. ft office, etc.) 22. 4/86: 20 x 40' pipe storage shed added (approved by staff). 23. 9/S6:30 x 30' metal paint shop added (approved by staff). 24. 10/S6: Microwave dishes/radio antennae attached to stack (approved by staff). 25. 4/9/87 SDG&E withdraws application for spec Plan Amend SP-144 (E) (2/86). 26. 7/15/87: Add two temp, office trailers (approved by staff). 27. 7/19/89: Six waste water tanks approved (by PC Res 2859). 28. 7/24/89: Letter: Holzmiller to Siino (SDGE): Major review next time. / Page 2 SDG&E Encina Power Plant History (Annotated) 1. 4/6/71: Ord 9268 creates the P-U (Public Utility) zone This ordinance authorizes the power plant as a use under the zone, sets requirement for all public utility uses to be subject to specific plans, and stipulates that, "Any modifications from the original plan still in keeping with the intent and concept of said plan, may be filed with Planning Department for approval." 2. 6/22/71 PC recornm to Council to rezone Encina site to P-U (PC res 711) The action also was accompanied by direction to annex the adjacent SDG&cE land and apply the new zone to these lands also. 3. 8/3/71: Council Ord. 9279 to adopt a specific plan for Encina Plant Ordinance 9279 approved a specific plan (unnumbered) for the 680 acre site containing the existing Encina Power Plant. An 11 x 19 color graphic (dated 7/20/71) is in the file as is a 400-foot scale blueiine dated 1/9/70 (updated from a 12/21/61 drawing). The plant is shown to have four generator smokestacks (tops at elevation 190 feet above grade.). Condition 1 stipulates "...the area designated on the Specific Plan as 'Site of Future Power Plant', east of the freeway, be subject to Specific Plan approval at a later date". Condition 8 says further. "The proposed site for a future power generating facility on the East side of Interstate 5 shall be planned so as to be compatible with the present facility. The facilities shalL.be environmentally compatible with the City of Carlsbad." The ord. also stipulates: "...the Planning Director of the City of Carlsbad is designated as the enforcing officer of this Specific Plan. His decision shall be final as to whether the subject property has been properly developed and improved. However, the owners of the subject property may appeal to the city Council any decision of the Planning Director relative to this Specific Plan." (Presumably, no one else may appeal (?)1. 4. 12/4/73: Ordinance 9372 incorporates an amended specific plan (SP-144) Ordinance amends Ord. 9279 to include a revised plan labeled SP-144. (note: no copy of this exhibit is found in the files) to authorize replacement of four smoke stacks (190' above grade.) with one new stack (top at elevation 400' above grade) to serve five generators. A new condition 14 is added stipulating that the plant is to be subject to conditions (1-9,11) of Planning Commission Resol. 986 (11/13/73) One of these conditions states that the construction of the stack had to be started within one year of approval date or become null and void. Section 2 is amended to require a review on a five year basis to determine (among other things) if the 400' stack can be placed by one smaller or eliminated. The Planning director may approve "minor" changes. "Substantial changes" will be considered by the Planning Commision Because of inability to obtain all the necessary approvals within the ensuing one-year period the construction did not start and the approval became void on 12/4/84. Pagel 5. 5/75?: Fuel tank installation (building permit). No record of this project in Planning Dept. files. 6. 12/17/75 Meeting on SDG&E funding of road improvements. Meeting in which SDG&E agreed to pay and hold funds in the amount of $231,200 in escrow at 8% interest until called for by City for payment, in lieu of constructing improvements to Carlsbad Boulevard. 7. 5/4/76: Ord 9456 amends Ord 9279, requires air monitoring of 400' stack (SP-144(B)) Ordinance 9456 amended ord. 9279 Section 2 to replace the Specific Plan Map (assumed to be SP-144A) with a revised plan tabled SP-144B dated October 10, 1975. Section 3 of Ord 9456 amends condition no. 14 of section 2 of Ord. 9279, to add additional conditions to the earlier amendment (Ordinance 9372) that permitted the fifth generator and a single stack to replace the original four stacks. These conditions essentially re-authorize the single stack and add requirements to: monitor air emissions (a problem was occur ing with "fallout" over Terramar, a local residential project), require an annual report to Council on emissions (14 (j)), add APCD conditions, and add section 14(g), providing" In the event that the city of Carlsbad determines that the 400-foot stack is no longer necessary as a method of air emission dispersion, the 400-foot stack shall be removed at the applicant's expense...." 8. 5/18/76: CC motion and later agreement to deed beaches to state. An Agenda Bill 3657 measure found in the files was presumably approved by council (and agreed to later by SDG&E) to deed beaches owned by SDG&E and leased by the city to be deeded to state of California and to pay the city $42, 344 for improvements to these beaches unless SDG&E grants a public beach easement 9. 5/3/77: Ord 94S1 to build water treatment facility and maint. bldg (SP-144 (O) Ord 94S1 added condition 15 to the original ord., authorizing construction of 1) 6 water treatment ponds (2S.380 cu. yds of grading) and 2) a new maintenance building to replace existing facilities, both to be in keeping with a revised plan SP-144 (C) (dated 1/31/77). (A copy of this plan dated April 5,1977 is in the files.) 10. 6/77: Two-story 50' x 16' control room built (building permit). No record of this project is contained in Planning Dept. files. 11. 11/30/77 Council "files" SDG&E request for final building permit to operate the stack. An ongoing problem with particulate "fallout" from the old four stacks had ted to earlier incorporation of Condition (h) in Ord 9456. This condition states. "The paniculate 'fallout' problem shall be controlled to the satisfacton of the City Council of the City of Carlsbad and the Air Pollution Control Officer prior to the final building permit clearance for Encina 5 and the single stack" As of Nov 29, 1977 the Council did not feel that the problem was resolved and, therefore, deferred approving a final Certificate of Occupancy for operation of the fifth generator and the new, single stack. Page 2 12. 2/8/78: Council Res (5302) finding participate fallout problem is solved. Although the Council now found that the particulate fallout problem was controlled, final building permit clearance to operate the 400' stack in a commercial (as opposed to test) mode was conditioned : "Provided San Diego Gas And Electric continues to pay damages resulting from fallout and the City Manager reports on the results of that effort prior to final building permit clearance." 13. 2/2S/78: SDG&E requests suspending work on SP-144 (D), connection of Unit 5 to stack. At SDG&E's request (letter in file) processing of the amdendment was suspended. A refund of fees for processing SP-144 (D) was eventually made in November 197S. It is presumed that all the required conditions were met eventually, however, and the Certificate of Occupancy was issued, although the dates of these actions are not found in the files. 14. 1/10/80: Move maint. bldg. expand switching substation, driveway (staff author) Letter (1/10/80) from Principal Planner Bud Plender to Don Rose authorizing 1) the move of a maintenance building from its old attachment at the stack building, to a site southerly and easterly, 2) conversion of a temp, curb cut on Cannon Rd.. previously used during construction of the power plant, to permanent use for employees, and 3) expansion of the electrical switching substation (the source of transmission lines crossing the freeway). 15. 6/82: Expansion of distribution substation (approved by staff). The files contain an informational report only on this project from Planning Department to Planning Commission, based upon the Planning Director's administrative determination that the project was consistent with the adopted Specific Plan and, therefore, no amendment was required. The project consisted of expansion of the existing switching station to a capacity of 48 megawatts, expansion to be contained within a 270* x 160' fenced area. 16. 10/9/84; New 6.168 sq.ft. admin building added (approved by staff). Letter from Hoizmiller to Rose (SDG&E) on 10/9/84 for "administrative staff approval" to construct a replacement administrative building and conversion of the existing building to storage/maintenance. Approved with conditions: 1) building is to be a replacement and will serve no new employees. 2) a previously approved new maintenance building (see 1/10/80) will not be built and is to be deleted from the Specific Plan exhibit, 3) parking and circulation to remain unchanged, a new Specific Plan drawing showing precise location of all existing improvements circulation elements to be submited to Planning Department. (There is no record of this revised exhibit having been submitted). 17. 7/85: Remodel of electrical shop (building permit). No record of this project in Planning Dept. files. 18. 12/85: Lunch room remodel (building permit). No record of this project in Planning Dept. files. Page 3 19. 12/10/85: Letter from SDG&E, re: Carlsbad Blvd widening/access to Encina. Letter from Dave Siino complains that proposed improvements to Carlsbad Bivd will "aggravate the already unsafe conditions" of access to the plant. Mentions need to build 30.000 sq. ft. "service center" to house 250 employees and 15-20 customers at the plant site. Requests alternative access routing. 20. 1/86: Storeroom and repair facility remodel added (building permit) No record of this project in Planning Dept. files. 21. 2/86 Application to amend. SP-144(E) (50.000 sq. ft office, etc.) Proposal to amend SP-144(c) to show changes on two parts of the site. Power Plant: 1), facilities previously approved by Planning Dir. and 2) future facilities (lunch room, relocate guardhouse, relocate paint shop, "storage/office facility", and traffic signal/driveway. Operating Headquarters the amendment proposed replacement with a "Service Center", to include a 50.000 sq. ft. office building, lunch /recreation area, parking, equipment warehouse, vehicle repair facility, fleet vehicle parking .material storage area, vehicle gas facility, guardhouse, and "other related accessory facilities". Additionally, the amendment would have expanded the authority of the Planning Director beyond making findings of consistency for proposed construction, to include the authority to approve construction of "...minor accessory facilities not shown on the specific plan without the processing of a plan amendment." (Application subsequently withdrawn, see 4/9/87). 22. 4/86: 20 x 40' pipe storage shed added (approved by staff). No record of this project found in Planning Dept. files. 23. 9/86: 30 x 30' metal paint shop added (approved by staff). No record of this project contained in Planning Dept. files 24. 10/86: Microwave dishes/radio antennae attached to stack (approved by staff). The Planning Department provided a letter (dated 10/1/86) to Planning Commission at their October 1 meeting apprising them of the proposal and staffs determination that it qualified for an administrative approval, unless P.C. wished to require a formal Specific Plan amendment. (No following correspondence found in file). The project consisted of installing seven mircowave dishes and six Bogner radio antennae to the main stack. The city's satellite dish ordinance did not pertain, as public utilities are exempted. 25. 4/9/87 SDG&E withdraws application for spec Plan Amend SP-144 (E) (2/86). Withdrawal of proposed Specific Plan amendment, originally initiated in Feb. 86. presumably due to staffs concerns over the impacts associated with the office structure/"operating headquarters" and processing of environmental documents. Page 4 26. 7/15/87: Add two temp, office trailers (approved by staff). Trailers are 54 and 56 feet long, with a totalarea of 1175 square feet, auxilliary to the existing office of 6,000 sq. ft. The "temporary" use is presumed to last until such time as the city grants approval to the "operating headquarters", as was proposed above, under the withdrawn SP144 (E) amendment. 27. 7/19/S9: Six waste water tanks approved (by PC Res 2859). Planning Comission granted approval (PC Resolution 2859) of an amendment to Specific Plan 144 to install six waste water tanks. Among other conditions, no. 3 states,"Prior to the issuance of a building permit, the applicant shall provide the City with a reproducible 24" x 36", 100 scale mylar copy of an updated plan showing the entire Specific Plan 144 area including all existing buildings." The most recent correspondence from SDG&E (September 5, 1989, tetter from Siino to Holzmiller) provides material to meet several of the conditions of the PC Resolution. A copy of a 1910. sepia plot plan was submitted (thus meeting standard condition 2J, but the letter says that the undated reproducible "...is still under preparation and will be submitted soon". Therefore, as of this date, we have no exhibit showing the area of SP-144 with all the existing improvements. The implication also is that condition 3, needed for the issuance of building permits for the waste water tanks, is still unmet. Status of building permits is not known. 28. 7/24/89: Letter: Holzmiller to Siino (SDGE): Major review next time. In this letter Holzmiller reports Planning Commission's approval of the minor amendment to Specific Plan no. 144 to install the six wastewater tanks. Includes: "...any future request for improvement to the Encina Power Plan will require a complete major amendment to the Specific Plan processed in accordance with Chapter 21.3 of the Carlsbad Municipal code. At that time, the cumulative impact of ail previous minor amendments will be considered and an analysis will be made as to whether any conditions are necessary to address the cumulative impacts" ou. PageS San Diego Gas & Electric P.O. BOX 1831 • SAN DIEGO, CA 92112 • 619/696-2000 September 5, 1989 FILENO Mr. Mike Holzmiller Planning Director City of Carlsbad 2275 Las Palmas Drive Carlsbad, CA 92008 RE: EHCIHA WASTEWATER TANKS: MTwnR AMENDMENT FOR SP 144 (RESOLUTION 2958) •~-^_ Mike: ~^~~~ - The attached is submitted to fulfill >p_rofipconditions of approval: ~ • 24" x 36", 100 scale mylar copy of the site plan per condition number 2. • Landscape/Irrigation plan plus planting/irrigation specifications per condition number 5. • A sample of the color to be used in painting the tanks per condition number 8. This is representative of the larger oil tanks located directly north of the wastewater tank site. You indicated recently that you want the color to be similar to the oil tanks. • Per condition number 4, we believe that the project is in compliance with all conditions required by the Zone 3 Local Facilities Management Plan. • Per condition number 9, adequate means for preventing the discharge of oils, greases or hazardous materials into environmentally sensitive areas have been ^4-' incorporated into the project design. Rainfall drainage '" /i./i/ will be collected within the required containment area (/) and manually released to a storm drain drop inlet via a , drain valve. The drain valve shall be closed at all other times. Manual control of project drainage provides for the ability to visually inspect for oil, grease or hazardous substances on the site. Visual /"f inspection of wastewater tank operations will be a daily Mr. Mike Holzmiller -2- September 5, 1989 function. Oils or grease are unlikely to exist on the site because neither is necessary for the operation of the waste water tanks facilities. Spill/cleanup provisions for the hazardous waste processed in our wastewater operations exist in the form of the required perimeter containment system, tank design (100 percent capacity redundancy) and the hazardous materials and waste contingency plan and emergency procedures as required by the State Department of Health Services. The emergency procedures provide for the use of vacuum equipment to remove these substances, if necessary. The containment system and storm drain drop inlet with manually controlled drain valve are shown on the project grading plan and (see highlighted in yellow). • Project building and site plans for review by the Fire Department per conditions of approval 10 and 12 will be submitted as part of the project building permit £ submittal. / . • •>*/ A reproducible viable mylar copy of an updated plan ifr showing all existing buildings with the specific plan kM. 144 area is still under preparation and will be submitted soon. Mike, our Coastal development permit application for the wastewater tank project is scheduled for the September 12 meeting of the Coastal Commission. Assuming coastal permit approval, our desire is to begin project grading immediately. Release of the project grading permit is contingent upon the approval by the Planning and Engineering Departments of the information submitted to satisfy conditions of approval 5 and 9 of Planning Commission Resolution 2859. A prompt response to the adequacy of our information for these items would be greatly appreciated. Please call me if you have any questions regarding any of the above information. I can be reached at 696-2410. Sincerely, David S. Siino Senior Land Planner DSS:kms cc: Bob Wojclk, Engineering Department City of Carlsbad Planning Department July 24, 1989 San Diego Gas & Electric P.O Box 1831 San Diego, California 92112 Attention: Dave Siino RE: AMENDMENT TO SPECIFIC PLAN 144/ENCINA POWER PLANT Dear Mr. Siino: At the Planning Commission meeting of July 19, 1989, the Commission approved your request for a minor amendment to Specific Plan No. 144 to install six wastewater tanks. As was discussed at the meeting, this is to inform you that any future request for improvement to the Encina Power Plant will require a complete major amendment to the Specific Plan processed in accordance with Chapter 21.36 of the Carlsbad Municipal Code. At that time, the cumulative impact of all previous minor amendments will be considered and an analysis will be made as to whether any conditions are necessary to address the cumulative impacts. Please feel free to contact me if you have any questions concerning this matter. Sincerely, CITY OF CARLSBAD MICHAEL J. HOLZMILLER Planning Director arb cc:Planning Commission City Attorney SP-144 File: 2O75 Las Palmas Drive Carlsbad, California 92OO9-4859 (619) 438-1 161 PLANNING DEPARTMENT 2075 LAS PALMAS DRIVE CARLSBAD, CALIFORNIA 92009-4859 (619) 438-1161 Cttp of Cartebao July 15, 1987 David S. Slino Sr. Land Planner San Diego Gas & Electric P.O. Box 1831 San Diego, CA 92112 SUBJECT: USE OF TEMPORARY OFFICE TRAILERS Dear Dave: I recently received your request for the trailers at SDG&E's North Coast Center, proposal I find that it appears to be in conformance with SP-14-4- use of temporary office After reviewing your substantial It appears that the additional square footage will be minimal and that the trailers will be screened from the public view. Both these factors reduce the possibility of negative impacts on the surrounding neighborhood. You also stated there would be no additional employees, traffic, or impacts to public facilities. Based on these statements, your proposal appears to be only a minor revision and falls within our standards for substantial compliance. I will forward a copy of this letter to both Brian Hunter and Carter Darnell to expedite any permits you may require. Please feel free to call if you have any questions. Sincerely, ADRIENNE LANDERS Associate Planner AML:af cc: Charlie Grimjjr Brian Hunter Carter Darnell San Diego Gas & Electric July 9, 1987 Mike Howes Planning Department City of Carlsbad 2075 Las Palmas Drive Carlsbad, CA 92009-4859 Subject: USE OF TEMPORARY OFFICE TRAILERS FOR NORTH COAST DISTRICT OPERATING CENTER Mike: As you are aware, we desire to develop a service center (major office building) on the site of our North Coast District Operating Center. Resolving the land use and circulation issues to make this possible has caused delay of its planned construction. During the delay we would like to remedy our overcrowded conditions at the existing operating center construction office. The proposed remedy is the use of two temporary office trailers until the service center is built. The trailers are 53' x 10' and 56' x 11' and roughly 11' high. This provides for approximately 1175 square feet of additional office space. The existing office is approximately 6000 square feet. The proposed location for the trailers is shown on the at- tached site plan. These areas are totally screened by an existing 8' block wall and mature setback landscaping. These improvements would provide effective visual and noise buffering from the adjoining Teramar residential area. The attached photos illustrate these improvements from the immediate adjoining neighborhood along the south side of Cannon Road. The trailers will be occupied by existing construction office employees. There will be no involvement with members of the public. As a result, no increase in traffic would result because of their proposed use. We believe that the use of the trailers could be permitted without the need for a specific plan amendment. This opinion is based upon the following reasons: 1. Section 21.36.030 of the Public Utilities zone states "No building permit or other entitlement for any use in the PU zone shall be issued until a precise development plan has been approved for the property. POST OFFICE BOX 1831 • SAN DIEGO, CALIFORNIA 92112 • TELEPHONE: 619/696-2000 Mike Howes -2- July 9, 1987 A precise development plan has been developed for the property. The plan provides for administrative buildings and the minor expansion is proposed to be located directly adjacent to the existing construction office. All parking, access and circulation shall remain as it presently exists. 2. The intent and purpose of the Public Utility Zone (Section 21.36.010) is to provide for certain public utility and related uses subject to precise development plan procedure to: (a) ensure compatibility of the development with the General Plan and surrounding developments; (b) ensure that due regard is given to environmental factors; (c) provide for public improvements and other conditions of approval necessitated by development. We consider that the proposed trailers would be compatible with the surrounding development and the General Plan. In this case, the sur- rounding developments are all operating center related. Residential development, Teramar, relates to this part of Encina but this relation- ship would not be changed in any way by.the proposed use because of the existing screening improvements. With regard to environmental factors, the proposed structures would not intensify the construction operations use of the site, nor will they generate additional employees or traffic. Without additional employees or traffic no additional impacts to public facilities would occur and therefore, we feel that existing public improvements would adequately serve the proposed facilities. For these reasons, it is our opinion that the trailers are in concert with the intent and purpose of the Public Utility Zone. Hopefully, the above information will be helpful in making deci- sions on this request. Please call me if you wish to discuss any aspect of this letter. Sincerely, David S. Siino Sr. Land Planner DSSrjw Mike Howes -3- July 9, 1987 bcc: GABishop LJBrunton HDCompton FMDudley MEMcNabb JWShepard TLSinnott INFORMATION ITEM DATE: OCTOBER 1, 1986 TO: PLANNING COMMISSION FROM: PLANNING DEPARTMENT SUBJECT: ENCINA POWER PLANT TELECOMMUNICATIONS FACILITIES San Diego Gas & Electric is requesting permission to install seven microwave dishes and six Bogner radio antennas to the Encina Power Plant's stack in Carlsbad. The microwave dishes will be eight feet in diameter and the antennas will be thirteen feet long and four inches wide. The equipment will be the same color as the stack. This will minimize contrast between the equipment and the stack without drawing additional attention to the stack. SDG&E is exempt from the City's satellite dish ordinance because they are a public utility. Normally staff would process a minor request from a utility administratively, however, since the stack is so visible staff believes the Commission should be made aware of this request. SDG&E has informed staff that it needs to improve its telecommunications at the Encina Power Plant. The existing facilities and contracted communication services (telephone) are inadequate to ensure effective communication for routine or emergency functions. Their existing communication facilities are located on a 50 foot high lattice. This structure is not high enough to provide adequate microwave paths to areas served by the Encina Plant. In addition, some of the existing equipment is outdated. This 50 foot high lattice tower will be removed when the equipment is installed on the stack. SDGSE has submitted large sized photos that illustrate the appearance of the equipment once it is installed on the stack. After examining these photos staff felt that the proposed telecommunications facilities would have no adverse visual impacts. These photos will be available at the October 1, 1986 Planning Commission Meeting. Staff believes the proposed change is in conformance with the existing specific plan for this site and recommends that SDG&E be allowed to install the requested telecommunications equipment on the Encina Power Plant stack. For a more detailed explanation, see the attached letter of August 21, 1986. Attachment 1. Letter dated August 21, 1986 MH:dm 9/16/86 San Diego Gas & Electric August 21, 1986 WINNING DEPART, ** CITY OF Charlie Grimm Assistant Planning Director City of Carlsbad 1200 Elm Avenue Carlsbad, CA 92008 Subject: ENCINA POWER PLANT TELECOMMUNICATIONS FACILITIES Dear Mr. Grimm: SDG&E needs to improve its telecommunications facilities at Encina Power Plant. Existing microwave facilities and contracted communication services (telephone) are inadequate to insure effective communication for routine and emergency functions. This letter describes, in detail, our proposed plans for upgrading our facilities. It also serves as our request for an administrative determination that the proposed improvements are consistent with the existing specific plan governing development of Encina Power Plant. We feel an administrative determination of compliance is warranted because: (1) The existing specific plan provides for telecommunications facilities; (2) The proposed location for the proposed facilities is in proximity to existing telecommunication equipment; (3) The proposed location and installation of proposed telecommunications equipment does not increase the visual impact of the power plant. We are hopeful that after your review of this letter and other information we provide, that staff can support our request. BACKGROUND The problem with existing facilities is inadequate microwave paths to areas of our service territory served by Encina and outdated equipment. Improving our telecommunications capability requires replacing the existing facilities with "State of the Art" equipment and installing the equipment in a location that will provide for reliable microwave paths. The new facilities we plan to install include: o Microwave radio system POST OFFICE BOX 1831 • SAN DIEGO, CALIFORNIA 92112 • TELEPHONE: 619/696-2000 Mr. Charlie Grimm -2- August 21, 1986 o 800 megahertz mobile radio system o accessory radio equipment for operating both of the proposed systems MICROWAVE RADIO SYSTEM The Microwave Radio System involves the installation of seven (7), 8' in diameter microwave dishes. These will provide corporate wide telecommunications for both voice and data requirements. The system will also be utilized for direct line communication with other utilities, governmental agencies and our customers. Most importantly it will insure increased reliability for routine maintenance, dispatching and monitoring communication from SDG&E's Mission Control in San Diego and emergency communication from Encina to areas where existing reliability is very poor. MOBILE RADIO SYSTEM The Mobile Radio System involves the installation of six (6) Bogner radio antennas. Each antennae is 13' long and 4" in diameter. The system will provide improved efficiency for company communication. Expanded area coverage will result because of the increased number of radio channels available to company field personnel and locations to beam the signal. FACILITY INSTALLATION As mentioned earlier, the proposed improvements will replace existing microwave telecommunication facilities. These facilities include five microwave radio dishes installed on a 50' high lattice structure and an adjoining telecommunications building that houses associated radio communications equipment. The location of these existing facilities is shown on the attached power plant specific plan map. These improvements would be removed after the implementation of the proposed system. The desired location for the new telecommunications equipment is the Encina stack. The height of the stack is the key variable to achieving improved microwave paths to areas of our service territory now plagued with unreliable and inefficient communication. The microwave dishes would be located on the stack in various positions and elevations related to the intended destination. The bogner radio antennas would be mounted on the eastern side of the stack and positioned in a straight line. Accessory radio equipment for operation of the microwave and mobile radio systems would be located within the base of the Encina stack. Mr. Charlie Grimm -3- August 21, 1986 A schematic drawing is attached showing the proposed improvements. SDG&E recognizes that consideration of our request will trigger the visual impact issue of placing equipment on the Encina stack. We understand that it is important to provide you with sufficient data that will support our request and aid your evaluation. The most graphic data will be four photographs illustrating how the equipment would appear on the stack from various vantage points. The photographs were taken with a 50 millimeter lens. This lens most accurately characterizes what the human eye sees. The photographs were then enlarged to a scale (24" x 28") that is representative of what you would actually witness in the field. The proposed equipment was then painted onto the photographs in accurate proportion to the size of the stack. The equipment will be the same color as the stack. This will minimize contrast between the equipment and the stack without drawing additional attention to the stack. We believe the photographs will illustrate that this can be effectively accomplished. Now that you've had the opportunity to become familiar with our request and the nature of the proposed facilities, we would like the opportunity to meet with staff. The purpose of the meeting would be to deliver the photographs, discuss the project in detail and respond to any questions you might have. We will make ourselves available at your convenience. I will be contacting you shortly to arrange a meeting. If you have any questions regarding this matter or wish to discuss the project in general, please give me a call at 696-2410. Sincerely, David S. Siino Sr. Land Planner DSS:jw cc: Mike Howes SCHE?2\TIC O ~ MICROWAVE RADIO DISH | - BOGNER ANTENNAE P O O O O O SOUTH FACE OF EAST FACE O^ STACK NOP.TH FACE O17 STACK AQUATIC R QUATICEATIAREA OUTER LAGOON EXISTING TELECOMMUNICATION FACILITIES DEVELOPMENTAL M ]$&? m 1200 ELM AVENUE SERVICES mc'r&iijfmi CARLSBAD, CA 92008-1989 LAND USE PLANNING OFFICE ^Qfjtfpfr (619)438-5591 €itp of Cartebab October 9, 1984 Don Rose San Diego Gas & Electric P.O Box 1831 San Diego, CA 92112 SUBJECT: SPECIFIC PLAN 144/ADMINISTRATION BUILDING Dear Don: This is to confirm that your request for administrative staff approval to construct a new administrative building at the Carlsbad Encina Facility is approved for the following reasons and subject to the following conditions: (1) The new administrative building is a replacement for the existing, adjacent administrative facilities. No new employees are being added as a result of the new building. (2) The existing administrative facilities will be converted to a maintenance/storage building. The previously approved, new maintenance building will not be built and shall be deleted from the specific plan. (3) All parking, access and circulation shall remain as it presently exists. (4) A new specific plan drawing showing the precise location of all buildings, parking and circulation shall be submitted to the Land Use Planning Office. If you have any additional questions concerning this matter, feel free to contact me. Sincerely, CITY OF CARLSBAD -/I/ MJH/ar MICHAEL J. HOLZMILLER Land Use Planning Manager cc: Marty Orenyak, Director of Building & Planning Specific Plan 144 File June 2, 1982 Mr. Charles Grimm City of Carlsbad 1200 Elm Avenue Carlsbad, CA 92008 SUBJECT: AMENDMENT TO ENCINA POWER PLANT SPECIFIC PLAN GENERAL SDG&E requests administrative approval to the construction of a distribution substation at the plant. The substation represents an expansion to existing dis- tribution substation facilities located at Encina. PROJECT The proposed project is to construct a 138/12 kV substation in the location shown on the attached plat. The fenced area shown is approximately one acre in size although the substation hardware will occupy considerably less space and will not be very visible. (See the attached construction plan and elevation drawings). The substation is to be constructed in two phases, with app- roximately 70 percent of the hardware to be installed during the first phase. The ultimate capacity of the sub- station will be 48 megawatts (Mw). PROJECT NEED The substation is required because of the 4Mw demand of the Encina Water Pollution Control Facilities scheduled to be in service in 1983. It will also serve the rapidly growing areas along Interstate 5 and east to- wards El Camino Real. The existing 138/12 kV substation at Encina presently experiences a 1 percent overload on its distri- bution circuits. Extending service to the pollution control facilities will increase the circuit overload to 27 percent. This substantially increases the potential for a service failure or outage. A transformer bank or circuit failure would cause a substantial amount of comm- ercial and industrial load to be subject to an extended outage (longer than 12 hours). The new substation will eliminate the possibility of a circuit overload and re- liability problems. Mr. Charles J^imm -2- J^ June 2, 1982 PROJECT LOCATION Encina Power Plant was chosen for the location of the substation for the following reasons: (1) It is centrally located within the future load areas it is expected to serve. (2) It is a cost effective situation for SDG&E and the ratepayer to not have to purchase a sub- station site, transmission rights-of-way and the necessary transmission equipment. (3) it is possible to avoid the visual and noise im- pacts normally associated with a substation facility. The proposed location is presently screened from practically all areas adjacent to the power plant, particularly from Carlsbad Boulevard. Noise will not be an issue because the ambient noise level in the area is much higher than the noise that would be generated by operation of the substation. If you have any questions regarding the proposed project, call me at (714) 232-4252, Extension 2469. Sincerely/, David S. oiino Land Planner OSS:mak Enclosure •San Diego Gas & Electric April 13, 1982 FILE NO. RECEIVED APR 141983 Charles Grimm City of Carlsbad PITV HP PARI QRAH1200 Elm Avenue Si1,1 Y Vr WtKUaBMUCarlsbad, CA 92008 Planning Depa lent SUBJECT: AMENDMENT OF ENCIMA POWER PI ANT SPECIFIC PLAN Dear Mr. Grimm: SDG&E is proposing to build a 138/12 kV distribu- tion substation within the Encina Power Plant site. The substation is considered accessory to the principle power plant use. The location of the proposed substation, a site plan and substation profile drawings are attached. The existing power plant specific plan does not show the proposed project site as a substation expansion area. We recognize that the specific plan must be amended to show the expansion area. Before we can do so, we need a determination as to type of amendment, major or minor, that is appropriate for the proposed project. Call me at 232-4252, extension 1789, to advise me of your determination, Sincerely David S. Siino Land Planner DSS:mic Attachment(s) POST OFFICE BOX 1831 • SAN DIEGO, CALIFORNIA 92112 • TELEPHONE: 714/232-4252 San Diego Gas & Electric July 3, 1980 JUL 3 1980FILE NO CITY OF CARLSBAD Pfenning Department Planning Department City of Carlsbad 1200 Elm Avenue Carlsbad, CA 92008 Gentlemen: This letter makes reference to San Diego Gas & Electric's Encina property located off Carlsbad Boulevard, specifically to an existing building which was being used by our Plant Construction Department. Said Department has been phased out. In our continuing effort to improve service for our customers, it is proposed to use the building as a public office. Some of the services we will offer are: a.) New service information - both gas and electric. b.) Engineering. c.) Bill payment facilities. Plant Construction employed approximately 50 employees; we anticipate about 30 - 40 employees. This will mean a reduction in traffic and provides ample parking for prospective customers. Currently the only offices which provide the services mentioned are located in Encinitas and Oceanside. We are anticipating to be in operation by September 1, 1980. Should this minor change cause any problem, please call me at 232-4252, extension 1884. Sincerely, P. G. Haas Land Planner PGH:cag POST OFFICE BOX 1831 -SAN DIEGO, CALIFORNIA 9211 2 • TELEPHONE 714/232-4252 4 San Diego Gas & Electric FILE NO. January 16, 1980 Planning Department City of Carlsbad 1200 Elm Avenue Carlsbad, CA 92008 ATTENTION: Bud Plender SUBJECT: AMENDMENTS TO SP-144 RE: Your letter of January 10, 1980 Dear Bud: Thanks for your prompt response to my/inquiry. I appreciate that. Of course, I am pleased witbt your determin- ation too. I agree with your appraisal of the circumstances. On my last trip up, Jim said that he did not think SDG&E had provided the city with the 1979 Annual Report on the Stack Emissions. I checked with the responsible department. They claim to have submitted the report to the City Manager. Let me know if you would like me to mail you one. I suspect that there are some other minor projects slated for the Encina plant site. I will contact you as soon as I get involved. Thanks again. Sincerely, D. L. Rose Land Planner DLR:cag RECEIVED JAN 18 1980 CITY OF CARLSBAD Planning Department POST OFFICE BOX 1831 • SAN DIEGO. CALIFORNIA 92112 • TELEPHONE: 714/232-4252 1200 ELM AVENUE M \Sg^ M TELEPHONE: CARLSBAD, CALIFORNIA 92008 WL/W J M (714)729-1181 Cttp of Cartebab January 10, 1980 Don L. Rose Senior Land Planner San Diego Gas and Electric P.O Box 1831 x San Diego, California 92112 SUBJECT: AMENDMENTS TO SP-144 Dear Don: I have reviewed the proposed addition and change to the Encina Power Plant site as you noted in your letter of January 2, 1980. All changes are minor in nature and will not affect the operation or efficiency of the plant. Also, the Engineering Department believes that the continued use of the temporary driveway along Cannon will help traffic- congestion on Carlsbad Boulevard. Therefore, you may proceed with these projects, without the necessity of an. amendment, to SP-144. Very truly yours, &J- BUD PLENDER Principal Planner cc: Planning Department Karen Lee, Plan Checker BP: ar Sara tectric 0U.M V9 0 tI. ?lanning Department City of Carlsbad 1200 Elm Avenue Carlsbad, CA 92008 Attn: Bud Plender Re: Specific Plan 144, Proposed Work Dear Bud: January 2, .1980 11> W <P F TT V.8.1 il! 'O ill l v i JAN 3 1980 CITY OF CARLSBAD Planning Department This follows our recant discussion in your office regarding proposed work at the Encina Power Plant Site. I have attached a map (SP-I44) showing the subject work, Tha dimensions on the attached drawing are approximate. I'll state our objective arid, explain each project, £BJECT1VE The objective of this correspondence is to obtain an admin- istrative approval .for the work described below as opposed to a specific plan amendment. We understand that other non-discretionary permits (such as building permits) may be required. PROPOSED WORK 1. Maintenance Building - SP--144, as approved, shows a mainten- ance building attached to the stack. We would like to locate the proposed maintenance building slightly east and south of the' location shown on SP-144. The attached copy of SP--144 s.hows both the existing and proposed locations. Subject .maintenance, building will not: be visible from any public street. /2.J ^Driveway Access f romCannon Road-f Cannon Road was improved by CTre^TIty'liiomeTimlf'TSalS?^ City provided E curb cut froi-i. Camion Road at the request of SDG&E. It is my understanding that this driveway was intended for the use of heavy equipment during con- struction of Eitcina 5. Construction work has finished. We-would like to continue use of this driveway but for employees also. • This would •respond to requests from nearby residents regarding congestion of Carlsbad Blvd. The. approved specific plan does nor. deal with driveways and on-site traffic patterns. So I suspect that this is not an issue. However, the; City Engineer may wish to comment on this. POST OFFICE BOX 1831 • GAM DIEGO. CALIf ORNIA 921 12- TLCPHONE 714 /232-4 202 City of Carlsbad -2- January 2, 1980 3. Expansion of Substation - We intend to expand the substation (identified on SP-144 as Electric Switching Station). I believe the expansion will be within the area shown on the approved Specific Plan. However, it might require a slight expansion to the south. The area has not been surveyed yet. This expansion will not result in any new freeway crossings with transmission lines. I think this is within the scope of the approved plan. REQUEST Bud, we are requesting that the City provide us with a letter stating that the above described work will not require a Specific Plan Amendment, or any other discretionary actions. We would use such a letter to establish "approval in concept" per Coastal Commission require- ments. That covers it. Please give me a call if you need any other information or if there is going to be a problem obtaining your adminis- trative approval. D. L. Rose Senior Land Planner DLR:kes Attachment cc F. M. Dudley H. E. Richmond RECEIVED •JAN 3 1980 CITY OF CARLSBAD Planning Department S I) G S t EXPANSION AREA C c! r i s bo d City C oLI nc i 1 City Of CaHEl'Gc! .litJOn El 1,1 Avenue Carlsbad-, Ca- Re : Mov 2 EN Council Masting Subject : Aaendci Bill St!5.u Cent-' G?i;;Q the:? or in 5. on-jj group in the fight to stop the air pollution fro.:, the? S i) G/E.-Operat j onsi I trust this 1 attars contents wiiJ be considered bafore faking your decision of ce:,ipI i onco or ;^-v D::i-; T n -i —iJj i r i • • First sHovi ;::: the Nov .?.?] liis; there were tw< counci 1 . fJuiT.bc •o rcrr-'iP .you to the City At.tprmeyK odvicc to- at feet 'tl'iat -f.'t tl'iG; orioicnal hp.:;r i n:.1to the A i r Po ;e and di st i nctsub jects bcofore tl'\:> llution- Munbbr 2~ The MQDft Sta< Uhilc? v.'s Fnlt your dacisionn as ths p&EuIt of thin rnGetino-; i-.f^s not in ths pubi i cs intsPsstT ue respGctc^ci your riglit of c!a::i?ron one! expGctcKl than ond now that the -conditions of the per;:;it would be fully enforcRcl. ' I felt before and fe£l today that the City Attornny had dona an excel! Rnt job in his i. ntsrpr'^tat ion of th^ counciir; decision ^nd tho? public' in tha drafting of apticlr;^ ov coiripl i c-:nce govern! no. thci construction of ths stsci< and the rc:c;u i romGnti: ccncQr-ning pollution cbatRwant«ThQSG wars accepted by S D Gi\£. 'At th(2 council naetingn Nov 55 T much of present at ion by tha S .!> G G E representatives wasiin my op in ion i irrelevant in r.iGny v;ays and totally nhort of proof of compliance- Thereofora without a lengthy rabuttal pleass allow ii;a to briefly covar pns point only of their presentation. That point being Air or find currants in the beach or plant area-• Your review of the inf or net 5 or, presented to you will show that that they spoke only, of monitering air currents flov;ing in! and and falling on tha tomatoes pi ants. You c;sr.G diverted to think about plant 1 if cane! not. .human life. ^fhe truth of the matter is that the air currents- here ere offshore in r.:y cpinicnn longer th.-.:-; they are >o/vr:hore. Also tlinre arc: c'ef— inatc periods n r.iorning and evening iuhr::n there is no air {iiovc'..:'j!u; whatsoever. This is ccmmon throughout•the year except-when ua are affected by the wi nter/spri ng storms or tropical weather front::. If you wont "to see rollout come sea for yourself, lie are within t,DD ft of the- stack. - Still in view of all that has been said and done we still have four- -C'-l> cmoke stacks and thai rpol lut i otin plusa ol!DD ft one. At this time I would be in favor of perm?tting then to connect stacks I through l! into the .new one; if it is Inga! to so do with out 1 OKI rig control of the main purpose—PGLLlJTIOf] ABATLliLHT. This is what we? were promised and this is what we expect- UG were also assured at the origional hearing-i mentioned by coun- cilman Skotnicki as lasting till 3 ami that in the? eventof ncn coiiipliancn that'the A P C J> would move to take leoal action. He are nov; concerned of the turn around of the A P C ]> in stntinr; -t tha Nov P-l: niacting t'iiat there ues no way they would try to do so. This ntatGi.rnnt i in my cpinionn is a rravo error end is tanta- mount to havinr: the police say-i to a £:e!ectec! r.;roupn-go ahead cirsd .steal we uontdo anything obout it. .Our orirjicncil complaints were against pollutioiin per se nand its effect upori tiie health of those of us who live Uill/ER the STACi;.'S andbetween other sources of pollution by the operat i oncf ^ j G/'-L plant operation. A pollution prcblemthat i in my opinion T is as hazardous to cur health as the stac:' e^mi ssi on exists but is played down- I have been denied the right to speak upon the subject before the San Diego Coast f'sgionaN State Coastal Commission as -wall c.c you . planning commission. Your records will show that during the origional hearings L spoke on'Various matters in opposition to SI) C/£TS presentat ionnbut a— bouve all and fornoct 1 urged the council menbers to fully in — vest i gate the health effect upon the public as tha PR If IE '[-"ACTOR for either granting or denying their application. That pollution source ic the unloading of tankers and the loading of barges and tankers in the present anchorage used by S 3) G/E. I stated before previous bodys that somewhere or somtiwe this, problem would be made public. It now appeares that this type of pollution i s. recogni zee! by the public hearings being hoi din lios Angeles regarding the nSohio Project" in its receiving of oil and its' transhipment. The L..A. Times article of f-Jov P.P. covered the hearing and the battle for control 1 of of the admissions by both the Coast Guard and the state A K C. . This hearing covered the unloading of supertankers near San Clcr.r- enta island into smaller tankers for movement ashoroi known as lightering which contributes significantly to southern talif air pollution. These e: •;;ii ssi pnn largely cone fror.ic hydrocarbon gaser:: escape ing during unloading. • It in i ntarnst 5 ng as we? 1 I as frightening to learn t~.hr.':. in her;dnl~- ing TGDnCnD barrels of crude oil that it would ppoduce a ucxi — nun of 3E-,L,2R pounds of SULI-'MIIR OXIDES - Mn pound:: of J.'ITKCGIM OXIDES and 15^2 pounc.Jr.v- of P ARTICULATES. Since t!ov IQn lc]7£> I have logged i to the best of r:y Ixnowl HL'TQI all oi ! tankers del 5 vr.rinn oil cnc.! CD! 1 bcjpo^c and op ton!;arn bainn loaded through tl'in S D C/E. onchorcoa. Ily rc-icor'dr.; would show a mirninum of dalivorinc: due to bucir.Gac: ts-ipK end vacation on SEPT a to OCT?;1-! ^77 It is iny opinion that tho aiiiount of oi ! del i vi^rnd to c:nd trGnn — shipp?2ci throupji this anchorage- cont ibutnc :;i rjnif ecoiit ly nby itr crnrai EG ions:n to our local end arsa pollution., ily poiirt' is sSno'y this. Burino nicht time unloocjing and th.s storarn tan'cs b.ainr; fiiind thr? 'crHEsions than ars carriad ssow^rd through and ground our During dcytirna loading of oij for transhi ppr.iQnt tha Gr^r.ii s-si or,:: ara than towardr; tine land and oricc again through and around our hones. It ic. furthar rr.y opinion tlict OP. e population end or area basis corr.parac! to tiv.^ LOG An go Ice area that wo arc cert t inn as .much poljution now from the S I) C /£. oil transfer as the Los Angalas basin would gat from ths Si^iu Son TO Project.. a;-:d rai.H^bsr thcv. ours v.'ill epproxinetsly double wl'ien unit S goes on the line- , ..',,..••'•'-• * - L :J liylog shows more oil received and shipped to date n Mpv E^L! 1177-1 than the year of l1-]?^. Log inactive from Sept u to Oct lll 1T77. Three tankers are the primary delivering carrierscdf fuel oil to the S I) G/T£ plant and according to the Coast Guard each has a capacity of L;-[Ja-,ODD to L!SD-,DDa barrles. oOna Barge is used to transport oil south and has a capacity of SCQD barellsn according to the Coast Guard. Two -C2> small tankers have been fi.lled to date, capacity unknown. They were the Golden State and the Exxon Baltimore listing U i Imington-, Jtelewarc as their home port. v.To date n my log showsn the Barge has been filled 115 times plus She two -£5> smal 1 tankers abouve-i To date thirty six -C 3u > Tankers have unloaded! which includes the tanker Cheveron Oregon one -CXI time and the rievada Standard two -CEI3- times. I will submit my records for verification upon request- Ue in this area fee! that this pollution! by enr:;i ssioni siould or ns much a part of your consideration as the stacks. Uc fu'-thus-1 urne you not to make o rush decision for the sake of making one and before all the facts are in on ALL OF T!!I POLLUTION. I'Je cjlso feel that S D G/E accepted tha terr.is of your par;.n't with all its requirements and should therefore fully co;.:p!y. It is our opiriion TSS interested oJ^eerver^r-i ' f-iat the info."1; '•'r su'ji'itted to th.Q- council on Mov 2F.? reoll y said noticing and a!"ri',-e -all die! not prove anything. This i believe: war; prove;: by i!r r, ;••.;•,•: position and his refusal to clear- the project. May we say at this time that we are very proud of .the prof err! or:- attitude and courage of- fir Sin;;;;on in. his ecti.on to protect the public in calling in the State Health Officials when faced with a questionable problorr:. . UG thank you sincerely for your indulgence and trust that your efforts in these matters will be for the protection of the . pub!ic. Yours very truly' cc: M counci 1 1 c mgr 1 c att 3. aped 1 eirb Edward L • Valentine n' Tierra Del Oro Carlsbad-.- Ca- 'SSOG