Nonpoint Source (NPS) Pollution Control Program

Nonpoint Source (NPS) Pollution Control Program

NONPOINT SOURCE (NPS) POLLUTION is currently the leading cause of pollution to surface and groundwater. NPS pollution comes from many diffuse sources including agriculture (pesticides, herbicides), urban runoff (construction sites, roads, industry, residential areas), marinas and boating, hydromodification and mining. (In the past, a large amount of pollution was contributed by point discharges (businesses, industry, municipalities); however, most point discharges are now regulated by waste discharge requirements.)

An important element of the Regional Board's approach to address NPS is to increase public awareness of NPS issues through education.  This includes education/outreach on the causes and control of NPS pollution to local agencies, developers, businesses, industry, home owners/renters, school children, and youth groups.  Part of this educational process is to promote the use of best management practices which are designed to eliminate or reduce the amount of pollution contributed by current practices.  As part of the public outreach effort, Regional Board staff are available to speak to schools and other groups on NPS issues. 

How YOU can help prevent NPS Pollution

BECOME EDUCATED about environmental pollution and encourage your friends to do the same.

DON'T put anything down storm drains - including chemicals, paint, oil & grease, trash, pet waste, leaves & grass

DON'T apply pesticides and herbicides in amounts greater than the recommended dosage, and use the least toxic products available

DO pick up pet waste

RECYCLE, RECYCLE, RECYCLE - including plastic, glass, aluminum cans, paper, newspaper - (For recycling tips -

TAKE hazardous waste, such as motor oil, paint, and chemicals, to a designated HAZARDOUS WASTE COLLECTION SITE

For Locations - Call 1-800-CLEANUP (553-2962) or

NPS Related Document

Final Report - Assessment of Status of Riverine Wetlands in the Santa Ana and San Jacinto River Watersheds - This document is available on request. Please contact David Woelfel at (951) 782-7960 or SueAnn Neal at (951) 782-4468.