GSWC - Florence/Graham
Drinking water quality, contact, and Consumer Confidence Report
Serving 2 cities in CA · PWSID CA1910077
GSWC - Florence/Graham serves 62,970 people. See EPA records and contact info below.
- People served
- 62,970
- PFAS
- Not detected above guidelines
- Health-based violations since 2020
- 0
Data sources: EPA SDWIS, GSWC - Florence/Graham's published Consumer Confidence Report, and compliance monitoring reported to EPA by CA State Water Resources Control Board, Div. of Drinking Water.
This page summarizes publicly available EPA and CCR records. For health decisions about your water, consult your utility or a licensed professional.
Official GSWC - Florence/Graham Resources
GSWC - Florence/Graham Service Area
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This map shows the approximate service area for GSWC - Florence/Graham. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.
GSWC - Florence/Graham Water Quality Grade
Not graded: Monitor
GSWC - Florence/Graham reads Monitor. A letter grade is given only beside a Safe verdict.
Is GSWC - Florence/Graham Water Safe to Drink?
GSWC - Florence/Graham has reported 8 contaminants with an EPA health goal detected in some samples (no level on file) and 1 nitrate reading above 10 mg/L whose basis is unconfirmed (above EPA's limit if measured as nitrogen, within it if measured as nitrate) in at least one city served. We recommend reviewing individual city reports below for specific water quality details.
Partial data: State Water Board lab results show 2 of the 3 active sources GSWC - Florence/Graham sampled above California's hexavalent chromium limit of 10 µg/L (state MCL, in effect since October 1, 2024). The highest average is 17.3 µg/L at NADEAU WELL 03 (3 samples since October 1, 2024, latest May 5, 2025). GSWC - Florence/Graham's treated or delivered water, also sampled, averages within it, so these results do not show the water it serves above the limit, and they are not counted toward its verdict. Source: State Water Resources Control Board lab results (updated 2026-09-15).
This utility serves 62,970 people across 2 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 - Florence/Graham Service Area
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GSWC - Florence/Graham Contact & Information
Mailing Address
B2B Contact Data
B2B Contact Data Available
Contacts for GSWC - Florence/Graham
| 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, hydrogen peroxide, hypochlorite, ozone
GSWC - Florence/Graham 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 - Florence/Graham 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.
GSWC - Florence/Graham Annual Water Quality Reports
We don’t have a link we can confirm belongs to this system, and we’d rather show none than the wrong utility’s. CA State Water Resources Control Board, Div. of Drinking Water publishes drinking-water reports for systems in this state.
Visit CA State Water Resources Control Board, Div. of Drinking WaterWhat is a CCR? The Consumer Confidence Report (CCR) is an annual water quality report that water utilities are required by the EPA to provide to customers. It contains information about your water source, detected contaminants, and compliance status.
EPA Health-Based Violations Since 2020
GSWC - Florence/Graham has no health-based EPA violation since 2020 (EPA data as of Q2 2026).
EPA SDWA violation data as of Q2 2026 (downloaded 2026-07-09).
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Upload my testFrequently Asked Questions about GSWC - Florence/Graham
Is GSWC - Florence/Graham water safe to drink?
Does GSWC - Florence/Graham have PFAS in its water?
How do I pay my GSWC - Florence/Graham water bill?
How many people does GSWC - Florence/Graham serve?
What cities does GSWC - Florence/Graham serve?
Does GSWC - Florence/Graham have any EPA violations?
What is GSWC - Florence/Graham's phone number?
Where can I find GSWC - Florence/Graham'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 - Florence/Graham's most recent published Consumer Confidence Report (CCR), where available.
- Service area & contact: EPA SDWIS. The compliance records it holds for this system are reported to EPA by CA State Water Resources Control Board, Div. of Drinking Water, the state's drinking-water primacy agency.
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 - Florence/Graham? Publish your 2027 CCR
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- 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.
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