Is Muscoy Mwc No. 1 water safe to drink?

Muscoy Mwc No. 1 has no open health-based violations currently recorded in EPA's federal database. No active exceedances of legal contaminant limits are on record. Review the Consumer Confidence Report for annual test results and detected levels.

Does Muscoy Mwc No. 1 have PFAS contamination?

Muscoy Mwc No. 1 (PWSID: CA3610031) has 58 PFAS monitoring records in EPA's UCMR 5 dataset (2023–2025). UCMR 5 data represents monitoring under the unregulated contaminant monitoring rule — detection is not a violation determination but indicates PFAS was measured. View the full PFAS record on the PFAS Watchlist page for this utility.

What contaminants has Muscoy Mwc No. 1 violated limits for?

Muscoy Mwc No. 1 has health-based violations on record for: nitrates. Health-based violations mean the EPA's legal limit (MCL) was exceeded. See the violation history on this page for dates, resolution status, and EPA source links.

What water filter is recommended for Muscoy Mwc No. 1?

Based on Muscoy Mwc No. 1's violation history and risk profile, the most relevant filtration options are: Reverse Osmosis (PFAS / PFOA / PFOS — 90–99% removal (NSF/ANSI 58 certified systems), Lead — 95–99% removal). Any filter used should be NSF/ANSI certified for the specific contaminants of concern. Replace filters on the manufacturer's schedule — an overdue filter may not perform as certified.

Where can I find the official water quality report (Consumer Confidence Report) for Muscoy Mwc No. 1?

Muscoy Mwc No. 1 (PWSID: CA3610031) is required to publish an annual Consumer Confidence Report (CCR) under the federal Safe Drinking Water Act. View official compliance records on EPA ECHO: https://echo.epa.gov/detailed-facility-report?fid=CA3610031. Contact the utility directly to request a printed copy of the most recent CCR.

How can I independently test my water from Muscoy Mwc No. 1?

You can test your tap water independently of Muscoy Mwc No. 1's compliance monitoring. Use a state-certified laboratory — the EPA maintains a national directory of certified labs searchable by state and contaminant type at epa.gov/dwlabcert. For PFAS, confirm the lab holds EPA Method 533 or 537.1 certification. For lead, use a lab certified by California's drinking water program. Find certified labs in California at waterutilityreport.com/labs.

CA3610031

No open health violations

Muscoy Mwc No. 1

Name: Muscoy Mwc No. 1 Drinking Water Quality Data
Creator: Water Utility Report

Groundwater · Private · 2167 DARBY STREET

Check also:Official records PFAS data (58)Testing labs in CA Treatment options California water hub

This page shows official EPA compliance records for Muscoy Mwc No. 1, including PFAS monitoring data, violation history, contaminant test results, treatment options, and certified testing lab links for California.

PFAS monitoring records (UCMR 5)Available

Health-based violationsAvailable

Contaminant test data (CCR)Not in current records

Treatment recommendationsAvailable

Muscoy Mwc No. 1 is a groundwater system serving 13,000 residents in California (PWSID: CA3610031). No open health-based violations are recorded in the EPA federal database for this system. EPA UCMR 5 monitoring returned 58 PFAS records for this utility.

At a Glance

CA3610031

Risk levelsafe

Open violationsNone on record

PFAS records58 UCMR 5 records

Population served13,000

Source waterGroundwater

Data sourceEPA ECHO ↗

Quick actions

Check contaminants ↓Violation history ↓Official records →View PFAS records →Treatment options →Compare utilities →Official EPA source ↗

Intelligence Summary · Muscoy Mwc No. 1

Risk LevelSafe

Open Health ViolationsNone on record

PFAS Records58 UCMR5 monitoring records on file

Population Served13,000 residents

Source WaterGroundwater

OwnershipPrivate

Recommended filtration: Reverse Osmosis

Overall Risk Level

No Concerns Detected

No Concern

Low

Moderate

High

Critical

Water meets all safety standards with no detected exceedances.

No open health violations on record. This utility has no active EPA violations involving contaminants exceeding legal limits. Always verify with your utility's Consumer Confidence Report for annual test results.

Utility Overview

Population Served

13,000

Source Type

Groundwater

Ownership

Private

PWSID

CA3610031

Detected Contaminants

CCR data ingestion in progress

Contaminant detection levels from Consumer Confidence Reports are being parsed and linked to utilities. Check back soon, or view the official report directly from the EPA links below.

View on EPA ECHO

Violation History

Sourced from EPA SDWIS. Health-based violations mean a contaminant exceeded the legal limit. Monitoring/Reporting violations mean required test results were not submitted to EPA — not necessarily that the water is unsafe.

MCL Violation — Nitrate

Resolved

Nov 2009 – Apr 2018Health-based

Monitoring & Reporting — Nitrate

Resolved

May 2008 – Apr 2018Monitoring/Reporting failure