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HomeMy WebLinkAbout6608; NW QUADRANT STORM DRAIN IMPROVEMENT; WATER POLLUTION CONTROL PLAN; 2012-02-17VVMIKFULLUIIUIN CONTROL PLAN .\ • r Project Threat Assessment Worksheet for Determination of Construction SWPPP Tier Level Construction Project Storm Water Threat Assessment Criteria* SWPPP Tier Level Significant Threat Assessment Criteria U. My project includes clearing, grading or other disturbances to the ground resulting in soil disturbance totaling one or more acres including any associated construction staging, equipment storage, stockpiling, pavement removal, refueling and maintenance areas; or, U My project is part of a phased development plan that will cumulatively result in soil Tier 3 disturbance totaling one or more acres including any associated construction staging, equipment storage, refueling and maintenance areas; or, U My project is located inside or within 200 feet of an environmentally sensitive area (see City ESA Proximity map) and has a significant potential for contributing pollutants to nearby receiving waters by wayof storm water runoff or non-storm water discharge(s). Moderate Threat Assessment Criteria My project does not meet any of the Significant Threat Assessment Criteria described above and meets one or more of the following criteria: U Project requires a grading plan pursuant to the Carlsbad Grading Ordinance (Chapter 15.16 of the Carlsbad Municipal Code); or, U Project will result in 2,500 square feet or more of soils disturbance including any associated construction staging, stockpiling, pavement removal, equipment storage, refueling and maintenance areas and project meets one or more of the additional following criteria: Tier 2 located within 200 feet of an environmentally sensitive area or the Pacific Ocean; and/or, disturbed area is located on a slope with a grade at or exceeding 5 horizontal to 1 vertical; and/or disturbed area is located along or within 30 feet of a storm drain inlet, an open drainage channel or watercourse; and/or construction will be initiated during the rainy season or will extend into the rainy season (Oct. 1 through April 30). Low Threat Assessment Criteria U My project does not meet any of the Significant or Moderate Threat criteria, is not an exempt permit type (see City's list of Permit Types Exempt from Construction SWPPP requirements) and the project meets one or more of the following criteria: Tier 1 results in some soil disturbance; and/or includes outdoor construction activities (such as roofing, saw cutting, equipment washing, material stockpiling, vehicle fueling, waste stockpiling) NQ Threat Project Assessment Criteria fh My project is in a category of permit types exempt from City Construction SWPPP requirements (see City's list of Permit Types Exempt from Construction SWPPP Exempt requirements) and/or does not meet any of the High, Moderate or Low Threat criteria described above. * The City Engineer may authorize rnuior variances from the Storm Water Threat Assessment Criteria in special circumstances where it can be shown that a lesser or higher Construction SWPPP Tier Level is warranted in the opinion of the City Engineer Construction SWPPP Standards and Requirements Rev 6/4/2008 Construction Threat Assessment Worksheet 0 for Determination of a Project's Perceived Threat to Storm Water Quality Construction Perceived SWPPP Tier Construction Threat Assessment Criteria* Threat to Storm Water Level Quality Tier 3 - High Construction Threat Assessment Criteria LI Project site is 50 acres or more and grading will occur during the rainy season LI Project site is I acre or more in size and is located within the Buena Vista or Agua Hedionda Lagoon watershed, inside or within 200 feet of an environmentally sensitive area (ESA) or discharges directly to an ESA High LI Soil at site is moderately to highly erosive (defined as having a predominance of soils with Tier 3 USDA-NRCS Erosion factors kr greater than or equal to 0.4) LI Site slope is 5 to I or steeper LI Construction is initiated during the rainy season or will extend into the rainy season (Oct. 1 through April 30). o Owner/contractor received a Storm Water Notice of Violation within past two years Tier 3 - Medium Construction Threat Assessment Criteria O All projects not meeting Tier 3 High Construction Threat Assessment Criteria Medium Tier 2 High Construction Threat Assessment Criteria LI Project is located within the Buena Vista or Agua Hedionda Lagoon watershed, inside or within 200 feet of an environmentally sensitive area (ESA) or discharges directly to an ESA LI Soil at site is moderately to highly erosive (defined as having a predominance of soils High ig with USDA-NRCS Erosion factors k greater than or equal to 0.4) Tier 2 LI Site slope is 5 to 1 or steeper LI Construction is initiated during the rainy season or will extend into the rainy season (Oct. 1 through April 30). LI Owner/contractor received a Storm Water Notice of Violation within past two years LI Site results in one half acre or more of soil disturbance Tier 2 - Medium Construction Threat Assessment Criteria Medium . LI All projects not meeting Tier 2 High Construction Threat Assessment Criteria Tier I - Medium Inspection Threat Assessment Criteria LI Project is located within the Buena Vista or Agua Hedionda Lagoon watershed, within or directly adjacent to an environmentally sensitive area (ESA) or discharges directly to an ESA LI Soil at site is moderately to highly erosive (defined as having a predominance of soils with USDA-NRCS Erosion factors kf greater than or equal to 0.4) Medium Tier 1 LI Site slope is 5 to 1 or steeper LI Construction is initiated during the rainy season or will extend into the rainy season (Oct. 1 through April 30). LI Owner/contractor received a Storm Water Notice of Violation within past two years LI Site results in one half acre or more of soil disturbance Tier 1 - Low Inspection Threat Assessment Criteria LOW All projects not meeting Tier I Medium Construction Threat Assessment Criteria Exempt - Not Applicable - Exempt * The City Engineer may authorize minor variances from the Construction Threat Assessment Criteria in special circumstances where it can be shown that a lesser or higher amount of storm water compliance inspection is warranted in the opinion of the City Engineer Construction SWPPP Standards and Requirements Rev 6/4/2008 CITY OF CARLSBAD STANDARD FORM - TIER 1 STORM WATER POLLUTION PREVENTION PLAN STORM WATER COMPLIANCE CERTIFICATE STORM WATER POLLUTION PREVENTION NOTES I My project is not in a category of permit types exempt from the Construction SWPPP requirements My project is not located inside or within 200 feet of an environmentally sensitive area with a significant potential for contributing pollutants to nearby receiving waters by way of storm water runoff or non-storm water discharge(s). I My project does not requires a grading plan pursuant to the Carlsbad Grading Ordinance (Chapter 15.16 of the Carlsbad Municipal Code) I My project will not result in 2,500 square feet or more of soils disturbance including any associated construction staging, stockpiling, pavement removal, equipment storage, refueling and maintenance areas that meets one or more of the additional following criteria: located within 200 feet of an environmentally sensitive area or the Pacific Ocean; and/or, disturbed area is located on a slope with a grade at or exceeding 5 horizontal to 1 vertical; and/or disturbed area is located along or within 30 feet of a storm drain inlet, an open drainage channel or watercourse; and/or construction will be initiated during the rainy season or will extend into the rainy season (Oct. 1 through April 30). I CERTIFY TO THE BEST OF MY KNOWLEDGE THAT ALL OF THE ABOVE CHECKED STATEMENTS ARE TRUE AND CORRECT. I AM SUBMITTING FOR CITY APPROVAL A TIER 1 CONSTRUCTION SWPPP PREPARED IN ACCORDANCE WITH THE REQUIREMENTS OF CITY STANDARDS. I UNDERSTAND AND ACKNOWLEDGE THAT I MUST: (1) IMPLEMENT BEST MANAGEMENT PRACTICES (BMPS) DURING CONSTRUCTION ACTIVITIES TO THE MAXIMUM EXTENT PRACTICABLE TO MINIMIZE THE MOBILIZATION OF POLLUTANTS SUCH AS SEDIMENT AND TO MINIMIZE THE EXPOSURE OF STORM WATER TO CONSTRUCTION RELATED POLLUTANTS; AND, (2) ADHERE TO, AND AT ALL TIMES, COMPLY WITH THIS CITY APPROVED TIER 1 CONSTRUCTION SWPPP THROUGHTOUT THE DURATION OF THE CONSTRUCTION ACTIVITIES UNTIL THE CONSTRUCTION WORK IS COMPLETE AND APPROVED BY THE CITY OF CARLSBAD. ALL NECESSARY EQUIPMENT AND MATERIALS SHALL BE AVAILABLE ON SITE TO FACILITATE RAPID INSTALLATION OF EROSION AND SEDIMENT CONTROL BMPS WHEN RAIN IS EMINENT. THE OWNER/CONTRACTOR SHALL RESTORE ALL EROSION CONTROL DEVICES TO WORKING ORDER TO THE SATISFACTION OF THE CITY ENGINEER AFTER EACH RUN- OFF PRODUCING RAINFALL. THE OWNER/CONTRACTOR SHALL INSTALL ADDITIONAL EROSION CONTROL MEASURES AS 'MAY BE REQUIRED BY THE CITY ENGINEERING OR BUILDING INSPECTOR DUE TO UNCOMPLETED GRADING OPERATIONS OR UNFORESEEN CIRCUMSTANCES WHICH MAY ARISE. ALL REMOVABLE PROTECTIVE DEVICES SHALL BE IN PLACE AT THE END OF EACH WORKING DAY WHEN THE FIVE (5) DAY RAIN PROBABILITY FORECAST EXCEEDS FORTY PERCENT (40%). SILT AND OTHER DEBRIS SHALL BE REMOVED AFTER EACH RAINFALL. ALL GRAVEL BAGS SHALL BE BURLAP TYPE WITH 3/4 INCH MINIMUM AGGREGATE. ADEQUATE EROSION AND SEDIMENT CONTROL AND PERIMETER PROTECTION BEST MANAGEMENT PRACTICE MEASURES MUST BE INSTALLED AND MAINTAINED. SPECIAL NOTES Crry OF CARLSBAD SHOP DRAWING REVIEW PROJECT INFORMATION Site Address: Assessor's Parcel Number: A) / Project 113: Construction Permit No.: \,0 \00? Estimated Construction Sian Dole ".kV .c/..ot' Project Duration 3 klontlis Emergency Contact: Name: 24 hour Phone: 7(00 ' 0 Perceived Threat to Storm Water Quality C Medium 0 Low If medium box is checked, must attach a site plan sheet showing proposed work area and location of proposed structural EMPs For City Use Only OWNER(S)'OWNER'S AGENT NAME (PRINT) OWNER(S)/OWNER'S AGENT NAME (SIGNATURE) DATE The approval by the Engineer of cry shop or working drawing (or of any drawing of the Contractors pant orequipn.anli she)) rict iin an way be deernoui to release the Contractor from lull rep3nS)y f,-coinj(ee aIij e'uete onrfcrn-ience Of the Work in accordance with mvontrac Drer,'s Cu5ltS, Neither shall such approval release the Conrtor from zilty ctuiy pieced upon him by any provi- sion in the Form of Contract. O .. ......REJECTED/RESUBMiT o AMEND AND RESUBMIT MAKE CORRECTIONS NOTED O........ NO EXCEPTIONS TAKEN CITY OF CARLSBAD STANDARD TIER I SWPPP Approved By: Date: Pagel of 3 Waste Management and Materials Erosion Control Sediment Control BMPs Tracking Non-Storm ater Pollution Control BMPs BMPs Con Ps Management g Best Management Practice .e g a i — — — (BMP) Description -, g C- B ci = O a a ' o.2 gg ft 00 10€ C, 0 U 2— 0 U U C COO C/) CO c 0 it Cl) O& O C I 2 02 CASQA Designation - C? ' 9 Ciji C? Ci C? F. C? '? ' "? C? C.) CO 0 CO 0 CO • 0 CO COW CO W U) U) COW U) CO Cl) CO U) • CO i- C- U) Z U) Z U) Z U) Z Construction Activity w U) - Grading/So/Disturbance — Trenching/Excavation - - - - - - - - - - - - - - - - - - Stockpiling ?C •• Drilling/Boring ._.._._. - Concrete/AsptiallSawcutting - Concrete flatwork - Paving -- - - - - - - - XL - - - - - - - - Conduit/Pipe Installation Stucco/Mortar Work - Waste Disposal Staging/Lay Down Area Equipment Maintenance and Fueling Hazardous Substance Use/Storage Dewatering Site Access Across Dirt Other (list): Instructions: Begin by reviewing the list of construction activities and checking the box to the left of any activity that will occur during the proposed construction. Add any other activity descriptions in the blank activity description boxes provided for that purpose and place a cheek in the box immediately to the left of the added activity description. For each activity deserribed, pick one or more best management practices (BMPs) from the list located alon the top of the form. Then place an X in the box at the place where the activity row intersects with the BMP column. Do this for each activity that was checked off and for each of the selected BMPs selected from the list. For Example - If the project includes site access across dirt, then check the box to the left of-Site Access Across Dirt". Then review the list for something that applies such as 'Stabilized Construcion Ingress/Egress" under Tracking Control. Follow along the "Site Access Across Din" row until you get to the 'Stabilized Construction Ingress/Egress" column and place an X in the box where the two meet. As another example say the project included a stockpile that you intend to cover with a plastic sheet. Since plastic sheeting is not on the list of BMPs, then write in "Cover with Plastic" in the blank column under the heading Erosion Control BMPs. Then place an X in the box where "Stockpiling" row intersects the new "Cover with Plastic" column. To learn more about what each BMP description means, you may wish to review the BMP Reference Handout prepared to assist applicants in the selection of appropriate Best Management Practice measures. The reference also explains the California Stormwaier Quality Association (CASQA) designation and how to apply the various selected BMPs to a project. - Page 2 of 3 Legend Site Map Features displayed on the map must include: An outline of the entire property Location and brief description of construction activity areas (e.g. grading, building, trenching, fueling areas, waste container area, wash racks, hazardous material storage areas, etc.) Location and flow direction arrows for existing drainage facilities (ditches, channels, inlets, storm drains, etc.) Location of existing storm water BMP controls (sediment basins, oill water separators, sumps, etc.) Location of proposed storm water BMP controls with brief description or legend reference Page 3of3 1/17/12 Google Maps Goo'gle Get Google Maps on your phone 9 Text the word "GMAPS" to 466453 / Her aRI GTill ' \ I ' - ; •-\•, \ \ -, - Game Time Live Sport Services \ \ \ S \ • -5-,, S •4• - - . ." 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