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Tap water quality report

Monse-Riggan Camp

EPA monitoring tested this supplier for 3 contaminants and detected 2. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

3
contaminants tested
2
detected
1,165
people served
1
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Private
Counties served
Okanogan

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

1
health-based violations
15
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2022-01-01 → 2022-12-31
MON Monitoring Resolved 2025-12-01 → 2025-12-31
MR Monitoring Unaddressed 2025-07-01
MON Monitoring Resolved 2023-10-01 → 2023-10-31
MON Monitoring Resolved 2023-09-01 → 2023-09-30
MON Monitoring Resolved 2023-08-01 → 2023-08-31
MON Monitoring Resolved 2023-08-01 → 2023-08-31
MON Monitoring Resolved 2023-07-01 → 2023-07-31
MON Monitoring Resolved 2023-07-01 → 2023-07-31
MON Monitoring Resolved 2023-06-01 → 2023-06-30

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
9160 µg/L 92%
of the EPA limit 10000 µg/L
 26/26 SYR4 2012–2019
Nitrate-Nitrite
9160 µg/L 92%
of the EPA limit 10000 µg/L
 13/13 SYR4 2012–2019
1 contaminants tested, none detected
Nitrite

Utility contact

Contact
Sonya Taylor

Frequently asked questions about Monse-Riggan Camp

Is Monse-Riggan Camp tap water safe to drink?

EPA monitoring detected 2 contaminants in Monse-Riggan Camp's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Monse-Riggan Camp's water?

EPA monitoring detected Nitrate, Nitrate-Nitrite. The full list with the level and data source for each is above.

How many people does Monse-Riggan Camp serve?

Monse-Riggan Camp reports serving 1,165 people in Washington, per its EPA record.

Has Monse-Riggan Camp had any water quality violations?

The EPA has 15 violations on file for Monse-Riggan Camp, of which 1 is health-based (a contaminant limit or required treatment was breached) and 1 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.