City of Modesto - Grayson
Drinking water quality, contact, and Consumer Confidence Report
Serving 1 city in CA · PWSID CA5010033
City of Modesto - Grayson serves 914 people. 1 contaminant currently exceed health-based guidelines — full breakdown below.
- People served
- 914
- PFAS
- No results on file
- Health-based violations since 2020
- 0
Data sources: EPA SDWIS, City of Modesto - Grayson'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.
Help Paying Your City of Modesto - Grayson Water Bill
- Ask City of Modesto - Grayson about payment plans and assistance.
- Call 211 to reach local help with utility bills.Verified from 211.org
- Find your local Community Action Agency.Verified from communityactionpartnership.com
- The federal water-bill program (LIHWAP) ended in March 2024.Verified from acf.govVerified from csd.ca.gov
Shutoff protections
- Water Shutoff Protection Act (SB 998), Health & Safety Code §116900 et seq.Shutoff protection from California Legislature (enforced by the State Water Resources Control Board).Verified from leginfo.legislature.ca.gov
Water outage or no water?
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in California
City of Modesto - Grayson Service Area
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This map shows the approximate service area for City of Modesto - Grayson. Actual coverage may vary. Contact the utility directly to confirm service availability at your address.
City of Modesto - Grayson Water Quality Grade
Not graded: Monitor
City of Modesto - Grayson reads Monitor. A letter grade is given only beside a Safe verdict.
Is City of Modesto - Grayson Water Safe to Drink?
City of Modesto - Grayson has reported 1 contaminant above EPA health-based guidelines (MCLGs) 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 2 active sources City of Modesto - Grayson sampled above California's hexavalent chromium limit of 10 µg/L (state MCL, in effect since October 1, 2024). The highest average is 17.7 µg/L at WELL 69 - RAW (13 samples since October 1, 2024, latest June 2, 2026). City of Modesto - Grayson'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 914 people across 1 city 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.
Get your water independently tested in California →How does California water quality rank nationally? →
Boil water advisories are issued by water systems and state agencies, and they change from day to day. Boil water advisories in California
Fluoride in City of Modesto - Grayson Water
City of Modesto - Grayson
PWSID CA5010033
No fluoride level in our data for City of Modesto - Grayson. Your utility's annual water quality report (CCR) lists it.
City of Modesto - Grayson Service Area
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City of Modesto - Grayson Contact & Information
Phone
Mailing Address
For hours of operation and emergency contact information, please visit the official utility website or call the main phone number.
B2B Contact Data
B2B Contact Data Available
Contacts for City of Modesto - Grayson
| 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
City of Modesto - Grayson 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 City of Modesto - Grayson 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.
City of Modesto - Grayson 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
City of Modesto - Grayson 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).
Concerned about what's in your water?
You're viewing 1 contaminant above health-based guidelines here. Your own tap water can differ — upload your test (PDF or a photo) and we'll email a full plain-English reading of every number, free.
Your upload also helps us keep local water data accurate — we only ever share anonymized, area-level summaries.
Upload my testRecommended Water Filters for City of Modesto - Grayson
Based on water quality data from cities served by City of Modesto - Grayson, we recommend NSF-certified filters that can remove contaminants above health guidelines.
Frequently Asked Questions about City of Modesto - Grayson
Is City of Modesto - Grayson water safe to drink?
Does City of Modesto - Grayson have PFAS in its water?
How do I pay my City of Modesto - Grayson water bill?
How many people does City of Modesto - Grayson serve?
What cities does City of Modesto - Grayson serve?
Does City of Modesto - Grayson have any EPA violations?
What is City of Modesto - Grayson's phone number?
Where can I find City of Modesto - Grayson'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: City of Modesto - Grayson'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 City of Modesto - Grayson? 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 City of Modesto - Grayson.
- 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.
Spotted something off on this page?
Residents keep our data honest.
This form corrects our data; it does not reach City of Modesto - Grayson. For a problem with your water now (discolored water, no water, low pressure, a leak), contact City of Modesto - Grayson directly.
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