Maintaining Water Quality
Urban stormwater runoff occurs when rainfall is collected by storm drains instead of being absorbed by groundcover or soil (commonly seen in a nonurban environment). When it rains, trash, silt, automotive chemicals, fertilizers, animal wastes, and other contaminants are washed into the storm drain system. Since storm drains are designed only to carry stormwater, they are typically not equipped with filters or cleaning systems. Consequently, they can carry contaminants found in urban runoff directly into flood control channels, creeks, rivers, and the ocean. Many of the contaminants found in runoff affect water quality, and can, at elevated levels, be toxic to aquatic and marine life. Increased surface water runoff will likely result from new development and reuse projects and existing land uses in Huntington Beach, potentially degrading already polluted waters.
Goal ERC-17. Enhance and protect water quality of all natural water bodies including rivers, creeks, harbors, wetlands, and the ocean.
Policies
A. Require redevelopment to comply with the City’s National Pollutant Discharge Elimination System permit and other regional permits issued by the State Water Resources Control Board and the Santa Ana Regional Water Quality Control Board.
B. Require that new development and significant redevelopment projects employ innovative and efficient drainage technologies that comply with federal and state water quality requirements and reduce runoff and water quality impacts to downstream environments.
C. Continue to require new development and significant redevelopment projects to propose protective safeguards and implement best management practices that minimize non-point source pollution and runoff associated with construction activities and ongoing operations.
D. Continue to require that new development and significant redevelopment projects incorporate low-impact development best management practices, which may include infiltration, harvest and reuse, evapotranspiration, and bio-treatment.
E. Prioritize investment in green stormwater infrastructure that restores natural landscapes before employing other management solutions.
F. Reduce pollutant runoff from new development to marine biological resources and wetlands by requiring the use of the most effective best management practices currently available.
G. Partner with and provide information to community organizations, community members, and businesses regarding best practices to minimize runoff and improve groundwater recharge.
H. Reduce impacts of new development and significant redevelopment project sites’ hydrologic regime (hydromodification).
I. Continue working with the County and the Regional Water Quality Control Board (RWQCB) on the Integrated Regional Water Quality Management Plan to explore and expand more regional treatment of stormwater runoff.