Residential downspout drainage
Santa Rosa, CA | Official Website
RESIDENTIAL: Specific requirements of the CALGreen + Tier 1, as summarized on the Checklists, are described in italics below. City clarification on conformance follows with the “Satisfied By” section. Landscaping plan requirements not listed. Required for Residential Projects: 4.106.2 – Storm water drainage and retention during construction.
[DOC File]Chapter 5 of Title 21 of the District of Columbia ...
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These drainage areas and their corresponding 1.2 inch SWRv, 1.7 inch storm ceiling, and minimum retention are given in Table 1. As shown in the table, drainage area 1 (roof) and drainage area 3 (turf) over-control by installing retention BMPs that can hold more than the 1.2 inch SWRv.
Each of the ten MassDEP Stormwater Management Policy ...
The size of the drainage area contributing runoff to the untreated outlet has been reduced to the maximum extent practicable. ... or cluster residential developments when the following conditions are met: ... The rooftop area contributing runoff to any one downspout cannot exceed 1,000 ft2.
[DOCX File]Title 9 - SURFACE WATER MANAGEMENT
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7. Core requirement 7: Financial guarantees and liability. All drainage facilities constructed or modified for projects, except downspout infiltration and dispersion systems for single family residential lots, must comply with the liability requirements of K.C.C. 9.04.100 and the financial guarantee requirements of K.C.C. Title 27A; 8.
[DOC File]Drainage in Allen’s Creek - University of Michigan
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Rainbarrels/ Downspout Disconnect Programs. Rainbarrel programs have proven to be an effective means to raise awareness for water conservation and water quality. Progressive municipalities, non-governmental agencies, and community groups have used rainbarrels for decades to teach citizens how individuals, involved at the residential scale, can ...
[DOC File]PART 3: SITE DESIGN AND IMPROVEMENT STANDARDS
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Off-street parking areas shall meet acceptable engineering standards as set forth by the City Engineer for such things as driveway widths, island design, curbs, barriers, grades, turning radii, vertical clearance, stacking and waiting areas and drainage. Non-Residential Uses (including Multi-Family Residential …
[DOC File]4 - Chesapeake Stormwater
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Contributing Drainage Area. Bioretention cells work best with smaller contributing drainage areas, where it is easier to achieve flow distribution over the filter bed. Typical drainage area size can range from 0.1 to 2.5 acres and consist of up to 100% impervious cover.
[DOCX File]111-Inspection Checklist.xls - WCDA
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Downspout Drainage. ... As a guide, stairs in new residential buildings must have a maximum riser of 7-3/4 inches and a minimum tread of 10 inches. Inspect the condition and fastening of all stair coverings. Reattach any stair covering that is loose. Stair width and clearance.
[DOC File]DIVISION - SCOPE OF WORK - New York City
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Provide all new storm drainage piping specialty devices as indicated on drawings and/or required by code. Devices shall include cleanouts, roof drains, downspout scuppers and yard drains. SECTION 221429 - SUMP PUMPS. Provide new sump pump, check valve, basin/pit cover and connection to sanitary drainage system.
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