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HomeMy WebLinkAbout03 Stormwater ChecklistDepartment of Community & Economic Development 321 E. 5th Street, Port Angeles, WA 98362 360.417.4817 | www.cityofpa.us | permits@cityofpa.us BUILDING PERMIT - STORMWATERBPSW PROJECT ADDRESS: STORMWATER QUESTIONNAIRE To determine the stormwater requirements that apply to your project, please answer the following questions: 1. What is the parcel size of the property to be developed? ____________ sq.ft. 2. What is the total area of already existing impervious surfaces? ____________ sq.ft. 3. What is the total land area that will be disturbed during this project? ____________ sq.ft. 4. What is the total area of new hard surfaces? ____________ sq.ft. 5. What is the total area of to-be replaced hard surfaces? ____________ sq.ft. 6. How much vegetation will be converted to lawn/landscaped area? ____________ sq.ft. 7. How much native vegetation will be converted to pasture? ____________ sq.ft. 8. Does the site have 35% or less existing impervious coverage? YES: This project is considered a “new development” project, proceed to question 9 NO: This project is considered a “re-development” project, proceed to question 13 NEW DEVELOPMENT 9. Does the project result in 5,000 sq.ft. or greater of new + replaced hard surface? YES: A Large Project Stormwater Plan is required NO: Proceed to question 10 10. Does the project convert ¾ acre (32,670 sq.ft.) or more of vegetation to lawn or landscaped area, or convert 2.5 acres or more of native vegetation to pasture? YES: A Large Project Stormwater Plan is required NO: Proceed to question 11 11. Does the project result in 2,000 sq.ft. or greater of new plus replaced hard surface area? YES: A Small Project Stormwater Plan is required NO: Proceed to question 12 12. Does the project have land disturbing activities greater than 7,000 sq.ft. but less than an acre? YES: A Small Project Stormwater Plan is required NO: Only Minimum Requirement 2 applies REDEVELOPMENT 13. Does the project add 5,000 sq. ft. or more of new hard surfaces? OR Convert 32,670 sq. ft. (¾ acre) or more of vegetation to lawn or landscaped area? OR disturb greater than 1 acre of land? OR Convert 2.5 acres or more of native vegetation to pasture? YES: A Large Project Stormwater Plan is required NO: Proceed to question 14 14. Does this project result in 2,000 sq. ft., or more, of new plus replaced hard surface area? OR Is the land disturbing activity greater than 7,000 sq. ft. but less than 1 acre? YES: Minimum Requirements 1 – 5 apply. Proceed to question 15 NO: Only Minimum Requirement 2 applies 15. Is the total of new plus replaced hard surfaces 5,000 sq. ft. or more, AND does the value of the proposed improvements – including interior improvements – exceed 50% of the assessed value (or replaced value) of the existing site improvements? YES: A Large Stormwater Plan is required NO: A Small Project Stormwater Plan is required CITY USE ONLY App. #: Received:PARCEL #063000-10-3130 36024 0 6860 4091 0 0 2769 BUILDING PERMIT - STORMWATER STORMWATER REQUIREMENTS Upon completion of the stormwater questionnaire, please use Table1 and Table 2 to determine the required stormwater management practices, and provide the appropriate materials with submission of your completed building permit application. Please indicate the level of Stormwater Management your project is required to meet:□MR #2 Only □Small Project (MR #1-5) □ Large Project (MR #1-9) □ Exempt Table 1: Washington State Department of Ecology Minimum Requirements (MR) MR #1: Preparations of stormwater site plans MR #2: Construction Stormwater Pollution Prevention Plan (SWPPP) MR #3: Source control of pollution MR #4: Preservation of natural drainage systems and outfalls MR #5: On-site stormwater management MR #6: Runoff treatment MR #7: Flow control MR #8: Wetlands protection MR #9: Operation and maintenance Table 2: Stormwater Management Information Requirement Description Required MR #2 Only A complete Construction SWPPP does not need to be prepared and submitted to meet this requirement. However, the project proponent must consider all 13 Elements of Construction Stormwater Pollution Prevention and develop controls for all elements of the project. COPA Factsheet B Additional Resources USSG 6.05.03 SWMMWW Vol.1-2.5.5 Small project stormwater plan (MR 1-5) Small projects are required to meet Minimum Requirements 1-5. These projects are generally less impactful and therefore require less stormwater protection and mitigation efforts. These projects have the option to use the City’s pre-engineered worksheets, templates, and forms to construct an a Small Stormwater Management Plan. COPA Factsheet A COPA Worksheets: A,B,C,D,E Additional Resources USSG 5.04.01.1 SWMMWW Vol.1-Ch.2 Large Project Stormwater Plan (MR 1-9) Large projects are required to meet all Minimum Requirements (1-9). These projects are either impactful by design or are being developed in an environmentally sensitive and/or critical area. The project proponent is required to retain professional engineering services to prepare and submit a detailed report that addresses site specifi c stormwater concerns and engineered solutions that meet WA State specifi cations. Contact a Licensed Engineering Firm Additional Resources USSG 5.04.01.2 SWMMWW Vol.1-Ch.2 USSG: City of Port Angeles Urban Services and Standards Guidelines, 2017 updated edition. Available free-of-charge at https://wa- portangeles.civicplus.com/277/urban-services-standards-guidelines SWMMWW: WA State Dept. of Ecology’s Stormwater Management Manual for Western Washington, 2014 updated edition I have read and completed the application and know it to be true and correct. I am authorized to apply for this permit and understand that it is my responsibility to determine what permits are required and to obtain permits prior to work. I understand that plan review fees are not refundable after review has occurred. I understand that I will forfeit review fees if I withdraw the application before the permit is issued. I understand that additional information may be required when determined necessary by the building offi cial and if the permit is not picked up/issued within 180 days of submittal, the application will be considered abandoned and the fees will be forfeited. Date Print Name Signature (□Owner □Contractor □Representative) 8/31/2020 Jacob T. Goodfellow