North Marin Water District Logo
  • Contact
  • Español
  • Home
  • Account
    • Online BillPay
    • My Water Usage
    • Update Account Info
    • Start Service
    • Stop Service
    • Rates
    • Low-Income Rate Assistance (LIRA) Program
    • Bill Adjustment Form
    • FAQs
  • Your Water
    • New Water Supplies
    • Novato Water
    • Stafford Lake and Dam
    • West Marin Water
    • Oceana Marin Sewer
    • Water Quality
    • Recycled Water
    • Backflow Prevention
    • Laboratory Services
    • What Is An Acre Foot?
  • Save Water
    • Indoors
    • Outdoors
    • Smart Home Survey
    • Conservation Rebates
    • Business Tips
    • Water Waste Report
    • Drought is Over
  • About
    • About NMWD
    • Board of Directors
    • NMWD Documents
    • History
    • 2019 By-Division Election System
    • 2022 Redistricting
    • Regulations
    • FAQs
  • News
    • News
    • Waterline Newsletter
    • Waterline Newsletter Archives
  • Search

West Marin Water

Where Does My Water Come From And How Is It Treated?

West Marin Water

Point Reyes Treatment Plant

The Point Reyes community water supply comes from groundwater wells located adjacent to Lagunitas Creek. Two wells are located behind the former Coast Guard Housing facility in Point Reyes Station, while another well is located about a mile and a half east of Point Reyes Station.

This supply is of excellent quality but it requires treatment to remove iron and manganese which can affect the color of the water and result in staining. Treatment consists of adding an oxidant to precipitate the iron and manganese and then filtering the water through pressure filters which are capable of removing the iron and manganese and any excess oxidant. After filtration a small amount of chlorine is added to keep this water pure in the pipeline.

Water Infrastructure

In addition to the Point Reyes Treatment Plant and groundwater supply wells, the water infrastructure serving Point Reyes community consists of pipelines, pump stations and storage tanks. The West Marin Factsheet provides an overview of the infrastructure’s history and past water demand or use.

West Marin Factsheet

West Marin Facilities and Infrastructure Map

What are Annual Water Quality Reports?

Water Quality Reports (or Consumer Confidence Reports) summarize the previous year’s monitoring and test results to show what substances have been found in the drinking water and whether the water is safe to drink. A useful site for understanding the information provided in the report is located at: www.waterqualityreport.org. The 1996 Amendments to the Safe Drinking Water Act has provisions requiring drinking water suppliers to issue annual reports to their customers on the quality of their drinking water.

If you ever have any questions about the quality of water that North Marin provides, please contact our water quality staff at (415) 761-8929, or (toll free): 1-800-464-6693 for additional information.

Find out more about water quality and read the Consumer Confidence Reports

Boundary Map

West Marin Water History

Statistics

Service Area
24 Square Miles

Active Connections
785

Dwelling Units
836

Estimated Population
1,800

Average Household Size
2.2 People

Miles of Pipeline
26

Number of Hydrants
172

Annual Production

Point Reyes Treatment Plant
65 Million Gallons*

*FY 2016

Urban Water Management Plan

Read More

Water Quality

My Water Usage

fb yt insta home-2 tw
  • Business
    • Engineering Services
    • Current Projects
  • Careers
    • Employment Opportunities
    • Human Resources
  • Media & Downloads
    • Press Contacts
    • Brand Files
  • Meetings
    • Agendas & Minutes
    • Calendar

© 2025 North Marin Water District, PO Box 146, Novato, CA 94948-0146

  • Privacy Policy

Site by Kiosk