雨水 is a valuable resource where we live and work. 在现代发展之前, rain water landed on trees and vegetation, where it was absorbed by plants and soils, as well as local creeks and rivers.

Today, that same rainwater hits impermeable surfaces like roofs, concrete walkways and asphalt roads. 雨水流动得很快, 造成侵蚀和水浸, and picks up all kinds of trash and pollutants along the way to the storm drain.

雨水 management is not just about preventing pollution. It is also about changing the way we build our community so that we can reconnect with this valuable resource. 

Water from storms picks up debris, chemicals, dirt and other pollutants. This water then flows directly to our local waterways and our regional watershed.

Our watershed stretches from the snowy Sierra Nevada mountaintops, down the foothills and through the valley into the Delta and then to the San Francisco Bay, 最终到达太平洋. Along the way, pollution and trash from the water impacts wildlife and drinking water.

1. Polluted stormwater runoff hurts plants, fish, animals and people.
2. Polluted stormwater affects drinking water.
3. Sediment (dirt) clouds water and that makes it difficult for aquatic plants to grow.
4. Excess nutrients cause algae blooms, which hurt fish and aquatic organisms.
5. Bacteria and other pathogens wash into swimming areas and create health hazards.
6. 垃圾——包括塑料袋, 六块环, 瓶, 烟头, lids and bottle caps – washes into water bodies and injure aquatic life.
7. Household hazardous wastes (insecticides, 农药, 油漆, 溶剂, used motor oil) poison aquatic life.
8. Land animals and people become sick or die from eating diseased fish and shellfish or ingesting polluted water.

Every time you use the shower, sink or toilet, the water goes through Sacramento Regional County Sanitation District 污水设施. This water goes through a number of wastewater treatment processes so that only cleaned water enters the waterways.

However, water that passes through the storm drain system remains completely untreated! The water that flows through the storm drain system carries pollutants (e.g. 农药, fertilizers, 垃圾) directly into the Sacramento River and the Deep Water Ship Channel.

The MS4 Permit requires that the City manage stormwater impacts from a variety of sources, 包括非法排放, 建设项目, 垃圾, 居民灌溉径流, 池排水, commercial kitchens and manufacturing facilities. The City also helps prevent stormwater pollution through education, 外展, business and residential support; and by managing municipal operations and sites effectively. For more information or help with stormwater protection, please call the Environmental 海洋之神登录入口 Department at (916) 617-4590.

Here is some background on the MS4 Permit:

2月5日, 2013, the State Water Resources Control Board (State) adopted the Phase II Small Municipal Separate 风暴 Sewer System (MS4) National Pollutant Discharge Elimination System (NPDES) Permit, 水质令编号. 2013-0001-DWQ, General Permit No. CAS000004 (Phase II 雨水 Permit). The effective date of the permit was July 1, 2013, with the requirements phased in over the five-year permit term. The Phase II 雨水 Permit regulates discharges from Small MS4s and requires Permit holders to implement a stormwater management program. The 西萨克拉门托市 is named as a Small MS4 Permittee in the Phase II 雨水 Permit and implements its stormwater management program locally to prevent and eliminate stormwater pollution to the maximum extent practicable.