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A direct answer to your question probably
could be obtained from www.ceta.org However, many sanitary sewer use ordinances
[in jurisdictions with NPDES-permitted sewage treatment plants] call for polluted
water [such as exterior washwater with petroleum-oil contaminants & soap]
to be kept out of storm drain systems. SF Bay Area chapter CETA guidelines
from the mid-90s recommend that as a BMP, though that is not a law or
regulation. As always, there is a big difference
between an ordinance being on the books and actual enforcement. Our
jurisdiction does enforce on stormwater discharges. The above opinion is mine and not necessarily that of my
employer. I am solely responsible for my professional opinions. Pascal Roubineau From:
owner-p2tech@great-lakes.net [mailto:owner-p2tech@great-lakes.net] On Behalf Of Nancy Larson We are working on a water quality protection self-assessment
tool tailored to businesses with paved surfaces (parking lots, drive thru areas,
gas stations, etc.). Does anyone know of environmentally friendly cleaning
products to recommend to the mobile washer sector for power
washing pavement (with oily contaminants), if they think they need more
than heated water. Thanks for any information you can provide. Barbara Johnson, PE |