GSWC-SAN DIMAS
Drinking water quality, contact, and Consumer Confidence Report
Serving 5 cities in CA · PWSID CA1910142
GSWC-SAN DIMAS serves 56,336 people. See EPA records and contact info below.
- People served
- 56,336
Data sources: EPA SDWIS, GSWC-SAN DIMAS's published Consumer Confidence Report, California Department of Environmental Protection.
This page summarizes publicly available EPA and CCR records. For health decisions about your water, consult your utility or a licensed professional.
Official GSWC-SAN DIMAS Resources
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Emergency Contact
Available 24/7 for emergencies
GSWC-SAN DIMAS Service Area
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This map shows the approximate service area for GSWC-SAN DIMAS. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.
GSWC-SAN DIMAS Water Quality Grade
Some contaminants exceed health guidelines.
Grade is calculated based on contaminants exceeding health guidelines (MCLG) and EPA Maximum Contaminant Level violations. A = Excellent (90-100), B = Good (80-89), C = Fair (70-79), D = Poor (60-69), F = Failing (<60).
Is GSWC-SAN DIMAS Water Safe to Drink?
GSWC-SAN DIMAS has reported 3 contaminants above EPA health-based guidelines (MCLGs) in at least one city served. We recommend reviewing individual city reports below for specific water quality details.
This utility serves 56,336 people across 5 cities in CA. Water quality can vary by location within the service area. Check individual city pages below for detailed contaminant data specific to your area.
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GSWC-SAN DIMAS Service Area
Charter Oak, CA
Covina, CA
La Verne, CA
San Dimas, CA
Walnut, CA
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GSWC-SAN DIMAS Contact & Information
Phone
Mailing Address
B2B Contact Data
B2B Contact Data Available
Contacts for GSWC-SAN DIMAS
| Name | Title | Phone | |
|---|---|---|---|
| J████ S████ | Water Treatment Supervisor | (555) ███-████ | j████@city████.gov |
| M████ J██████ | Utility Director | (555) ███-████ | m████@water████.org |
Water Sources & Treatment
Water Sources
Treatment Methods
Disinfectant Used
chloramines, chlorine, hypochlorite, ozone, uv light
GSWC-SAN DIMAS Consumer Confidence Report
A Consumer Confidence Report (CCR) is the EPA-mandated annual water-quality report every community water system must publish by July 1 each year (Safe Drinking Water Act §1414(c)(4)). It summarizes contaminants tested, MCL and MCLG comparisons, and any system violations from the prior calendar year.
A current CCR for GSWC-SAN DIMAS has not been published or validated on TapWaterData yet.
Residents: contact the utility directly using the phone number above, or check the EPA’s national CCR portal. Reports are typically distributed by mail or posted on the utility’s official website.
Recommended Water Filters for GSWC-SAN DIMAS
Based on water quality data from cities served by GSWC-SAN DIMAS, we recommend NSF-certified filters that can remove contaminants above health guidelines.
Frequently Asked Questions about GSWC-SAN DIMAS
Is GSWC-SAN DIMAS water safe to drink?
Does GSWC-SAN DIMAS have PFAS in its water?
How do I pay my GSWC-SAN DIMAS water bill?
How many people does GSWC-SAN DIMAS serve?
What cities does GSWC-SAN DIMAS serve?
Does GSWC-SAN DIMAS have any EPA violations?
What is GSWC-SAN DIMAS's phone number?
Where can I find GSWC-SAN DIMAS's Consumer Confidence Report?
Similar water utilities in California
How we built this page
Water-quality and contact data on this page comes from public federal and state records. We update each utility's record whenever its underlying source publishes new data — typically within days of an EPA SDWIS refresh.
- Contaminants & violations: EPA Safe Drinking Water Information System (SDWIS) plus the Unregulated Contaminant Monitoring Rule (UCMR-5) for PFAS and emerging contaminants.
- Annual reports: GSWC-SAN DIMAS's most recent published Consumer Confidence Report (CCR), where available.
- Service area & contact: EPA SDWIS plus the California Department of Environmental Protection / Drinking Water program.
Spotted a data issue? Use the Spotted something off? link at the bottom of the page — corrections feed back into the next data refresh. Learn more about TapWaterData.
Are you GSWC-SAN DIMAS? Publish your 2027 CCR
TapWaterData runs a free CCR publishing service for community water systems. Claim this listing to publish your Consumer Confidence Report here — it inherits this page's search authority and reaches every customer who Googles GSWC-SAN DIMAS.
- EPA-compliant distribution. Satisfies the 2027 Revised CCR Rule direct-URL requirement with an auditable archive.
- Publish once a year. Agent-assisted workflow; no login setup for small systems.
- Inherits this page's reach. Your published CCR appears directly on the page customers already find on Google.
Free for operators. No card required. Typical setup: 5 minutes.
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