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Home My WebLink AboutPCD/GPC 90-13; Vista/Carlsbad Sewer Interceptor; Planning Comm Determ/Gen Plan Consis (PCD/GPC)CITY OF CARLSBAD LAND USE REVIEW APPLICATION FORM PAGE 1 OF 2 1) APPLICATIONS APPLIED FOR: (CHECK BOXES) (For Dept. Use Only)(For Dept. Use Only) Master Plann n n n n Specific Plan Precise Development Plan.. Tentative Tract Map. Planned Development Permit Non-Residential Planned Devel opment Permi t '— ' Condominium Permit Special Use Permit ......... Redevelopment Permit ....... Tentative Parcel Map ....... Administrative Variance ---- n n n n n General PI an Amendment Site Development Plan Zone Change Conditional Use Permit Hillside Development Permit. Environmental Impact Assessmentn n n Variance Planned Industrial Permit... Coastal Development Permit.. Planning Commission Deter... 2 2) LOCATION OF PROJECT: X-JBETWEEN ;/T^ Q&k ^(NAME OF STREET) (NORTH, SOUTH, EAST, WEST) AND (NAME OF STREET) (NAME OF STREETJ^W fvi 3) BRIEF LEGAL DESCRIPTION:*J / Oak 4) ASSESSOR PARCEL NO(S). ft -f 5) LOCAL FACILITIES MANAGEMENT ZONE 6) EXISTING GENERAL PLAN DESIGNATION CBQ^ PROPOSED GENERAL LAN DESIGNATION 8) EXISTING ZONING PROPOSED ZONING 10) GROSS SITE ACREAGE 11) PROPOSED NUMBER OF RESIDENTIAL UNITS 12) PROPOSED NUMBER OF LOTS 13) TYPE OFSUBDIVISION 14) NUMBER OF EXISTING RESIDENTIAL UNITS (RESIDENTIAL COMMERCIALINDUSTIRAL) 15) PROPOSED INDUSTRIALOFFICE/SQUARE FOOTAGE 16) PROPOSED COMMERCIALSQUARE FOOTAGE ARFM0008.DH 4/89 CITY OF CARLSBAD LAND USE REVIEW APPLICATION FORM PAGE 2 OF 2 17) PERCENTAGE OF PROPOSED PROJECT IN OPEN SPACE M/A 18) PROPOSED SEWER USAGE IN EQUIVALENT DWELLING UNITS 20) PROJECT NAME: 19) PROPOSED INCREASE IN AVERAGE DAILYTRAFFIC (01 1 6 b fer r-en 21)BRIEF DESCRIPTION OF PROJECT:& fA\(A.,c-ef-ior*avlsiixJ^ flA 22)OWNER 23)APPLICANT NAME (PRINT OR TYPE)NAME (PRINT OR TYPE)MisC MAILING ADDRESS MAILING ADDRESS 7^0 5" CITY AND STATE, rf ZIP TELEPHONE CITY AND STATE ZIP TELEPHONE I CERTIFY THAT I AM THE LEGAL OWNER AND THAT ALL THE ABOVE INFORMATION IS TRUE AND CORRECT TO THE BEST OF MY KNOWLEDGE. SIGNATURE DATE I CERTIFY THAT I AM THE OWNER'S REPRE SENTATIVE AND THAT ALL THE ABOVE INFORMATION IS TRUE AND CORRECT TOTHE BEST OF MY KNOWLEDGE. SIGNATURE DATE *" FOR CITY USE ONLY FEE COMPUTATION: APPLICATION TYPE FEE REQUIRED DATE STAMP APPLICATION RECEIVED RECEIVED BY: TOTAL FEE REQUIRED DATE FEE PAID RECEIPT NO. ARFM0008.DH 4/89 r Sewer Demand Zone 1 Demand Status Existing Approved Future Land Use Residential Commercial Residential Commercial Residential Commercial Square Feet 2,241,251 154,359 2,185,467 Demand (EDUs) 9,012 1,244 1,208 86 2,000 1,214 Demand Totals (EDUs) 10,256 1,294 3,214 14,764 Facility Analysis This analysis will examine the two major interceptors serving Zone 1, i.e., the Vista/Carlsbad Interceptor and the North Agua Hedionda Interceptor. Each interceptor will be assessed for its adequacy by reach (individual segments). In addition, pump stations serving the interceptor as well as major sewer lines (subbasins) feeding into the interceptor will be analyzed. The discussion will focus on any areas where conformance to the adopted standard is a problem. 1. Vista/Carlsbad Interceptor Analysis of the Vista/Carlsbad (VC) Interceptor and the two major pumping stations indicate the existing plus approved project demands exceed capacity and will not conform to the adopted performance standard without proposed mitigation. There are ongoing projects which will mitigate these capacity problems and will ensure that these lines comply with the adopted standards. Unless otherwise stated, all City funds for financing future improvements will come from the City Sewer Construction Fund which originates from developer paid connection f ees . The Vista/Carlsbad Interceptor is the major trunk system serving the northern half of the City of Carlsbad. This line, as shown on the map on Page 129, extends along Route 78 from the Emerald Avenue interchange to the Buena Vista Lagoon then along Jefferson Street and Grand Avenue to the Santa Fe railroad then extending south to the Encina Water Pollution Control Facility Treatment Plant. The Vista/Carlsbad Interceptor currently from Growth Management Zones 1, 2, 3, 7, ( 16, 24 and 25, as well as the City of Vista accepts flows , 13, 14, 15, -133- The capacity of this facility is shown on Table S-A- "Carlsbad Capacity in the Vista/Carlsbad Interceptor", on Page 14-0. The table shows that the interceptor currently satisfies the adopted performance standard. However, reaches VC 10 and VC 11 are projected to fall below the performance standard based upon existing plus committed (approved) flows without the proposed mitigation. Reaches VC 10 and VC 11 are located in Zone 1 along the railroad tracks south of Grand Avenue. The upgrading of this portion was included in both the City of Vista's and the City of Carlsbad's Capital Improvement Program in the 1987-88 fiscal year. Table S-3, "Capital Improvement Program for the Vista/Carlsbad Interceptor", on Page 139 shows the recommended improvement program for the Vista/Carlsbad Interceptor. This improvement program will mitigate the City of Carlsbad's future capacity shortfalls in the gravity sections of the interceptor. The upgrading of Sections VC 10 and VC 11 are scheduled for construction when flows in these reaches are measured at 70 percent of the capacity of the line. Although the upgrading of VC 10 appears to be necessary and is scheduled for 1987, actual flows are below 70 percent of the line capacity and scheduling will occur in the future. (See memo dated June 16, 1987 as Appendix 7 for further discussion.) The Cities of Vista and Carlsbad have budgeted funds for these improvements and have agreed to a schedule to ensure compliance with the adopted performance standard. Buena Vista Pump Station The Buena Vista Pump Station is located at the corner of Jefferson Street and Highway 78. This pump station has a phased improvement program to meet future capacity needs. Table S-1, "Capital Improvement Program for the Buena Vista Pump Station," on Page 137, provides a brief description of future projects, the estimated date that it will be needed and the estimated construction cost to the City of Carlsbad for these projects. Agua Hedionda Pump Station The Agua Hedionda Pump station is on the southern shore of the Agua Hedionda Lagoon. Table S-2, "Capital Improvement Program for the Agua Hedionda Pump Station," on Page 137 provides a breakdown of the future capital improvements to the Agua Hedionda Pump Station. This table provides the description of the project, the cost and dates for these recommended improvements as well as the City of Carlsbad's share of the improvement program. -134- Downtown Sewers Sewer service to the downtown section of the City of Carlsbad is served by a network of gravity sewer lines which ultimately flow into the Vista/Carlsbad interceptor. A program has been initiated which is monitoring these lines to identify sections of the downtown sewer system which will not conform to the adopted performance standard without mitigation measures. The Downtown Sewer System contains lines that predate incorporation of the City. At present it is not known whether several of the sewer lines are adequate to serve the area. This issue will be addressed in the forthcoming revision of the Sewer Master Plan. If it is found that sections of the Downtown system are inadequate, the revised Sewer Master Plan will propose both a mitigation program and financing mechanisms for these improvements. It should be noted that the analysis of the Vista/Car 1sbad interceptor contained in this plan was based on potential flows from all subbasins flowing into the interceptor. Therefore, even if an individual subbasin fails to meet the adopted standard as could be the case for the Downtown system it would not affect the analysis of the entire interceptor. Moreover, the interceptor has been sized to accommodate the potential flows (based on buildout projections) . 2. North Agua Hedionda Interceptor The North Agua Hedionda Interceptor starts at El Camino Real and flows westerly along the Agua Hedionda Lagoon to Park Drive. It then follows along Park Drive to Marina Drive where the line proceeds north along the Agua Hedionda Lagoon to the Foxes Landing pump station. The pump station then pumps flows into the Vista/Car 1sbad Interceptor in the vicinity of Olive Avenue. The North Agua Hedionda Interceptor is shown on the Exhibit on Page 129. Analysis of the North Agua Hedionda Interceptor system is complicated by the fact that flows from Zone 7 have been diverted into this system. Analysis of this interceptor is shown on Table S-5, "Carlsbad Capacity in the North Agua Hedionda Interceptor," on Page 14-1. This analysis indicates that the gravity portions of the North Agua Hedionda Interceptor are able to accept Zone 1, 2 and 7 flows in compliance with the adopted performance standard. -135- Table S-3 Capital Improvement Program for the Vista/Carlsbad Interceptor Sewer Reach VC 5 VC 6 VC 8 VC 9 • VC 10 VC 11 VC 13 VC 14 VC 15 Year Needed 1988 1990 1993 1989 1987 * 2010 * 2010 1997 2001 Recommended Upgrade Size, in. 36 39 48 48 48 54 54 60 54 Carlsbad Percent of Project 15.0 15.0 19.9 25.6 29.9 36.6 36.6 52.3 52.6 Cost, $ 71,250 37,170 30,089 139,060 362,388 161,845 425,146 1,058,552 300,293 * Actual construction will be scheduled when flow in the reach is measured at 70 percent of the line capacity. -139- Table S-4 Carlsbad Capacity in the Vista/Carlsbad Interceptor (Baaed on 246 gallons per EdU and a peaking factor of 2.0) Section VC 1 VC 2 VC 3 VC 41 VC 5 VC 6 VC 7 VC 8 VC 9 VC 10 VC 1 1 VC 122 VC 13 VC 14 VC 15 VC 16 Total Capacity EDUa n 10,772 6,098 4,878 6,707 7, 114 13,821 7,724 10,366 10,366 15,447 16,260 21,545 21,545 23,984 61,809 Existing and Projected Flows EDUs Exist 1,642 3,225 3,225 3,991 3,991 5,492 6,203 8,032 10,290 14,511 14,511 14,511 16,841 16,970 18,042 Approved 1,642 3,659 3,659 4,538 4,538 6,245 6,964 8,979 11,377 15,974 15,974 ' 15,974 20,228 20,357 22.312 Future 3,460 5,523 5,523 6,618 6,618 8,534 9,332 12,963 16,037 21,636 21,636 21,636 42.097 42,576 50,701 Deficit Exist Approved 1,011 527 Future 645 1,608 2,597 5,671 6,189 5,376 91 20,552 18,592 O i 1. Buena Vista Pump Station. 2. Agua Hedionda Pump Station.