DC encourages rainwater harvesting through DOEE's RiverSmart Homes program, which offers rebates up to $1,000 per rain barrel and cost-share for cisterns. Captured water may be used for irrigation but not potable use.
The Department of Energy and Environment operates the RiverSmart Homes program, providing free site audits and rebates for rain barrels (up to 2 per property), rain gardens, permeable pavers, and shade trees. Rain barrel installs are typically fully subsidized for qualifying homeowners. Larger cisterns serving whole-house irrigation are allowed with a DOB plumbing permit if connected to any indoor use. DC participates in the Chesapeake Bay TMDL and stormwater retention is a priority, supported by the Stormwater Retention Credit (SRC) trading program for larger properties. Captured rainwater is restricted to outdoor non-potable use unless treated to DC Water standards. There is no property tax implication. DC's humid climate and frequent summer storms make harvesting productive.
Specific penalty amounts for this ordinance are not published in a publicly accessible fine schedule. Contact Washington code enforcement directly for current fines, enforcement procedures, and hearing options.
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