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Country Villa Mobile Park

What EPA’s and Washington’s records show in this utility’s water: nitrate, arsenic and other regulated chemicals; lead and copper; and violations since 2016, with the certification that handles each result.

Serves
162 people
Connections
46
Water source
Groundwater
Based in
Colville, WA
County
Stevens
Owner
Private
Hardness
Very hard

The short answer

1 result is above EPA’s legal limit, 1 more is above the limit’s level with no violation recorded, and 2 more are above the health goal. The worst: Arsenic, above the legal limit. 1 health-based violation since 2016.

What handles it

What was found

Lead and copper: EPA SDWIS monitoring periods ending 2006 to 2025.

Arsenic, uranium and nitrate: Washington’s own results, samples taken from Jan. 7, 2020 to Aug. 17, 2026, with EPA’s 2012 to 2019 file for earlier years.

Fluoride and chromium (total): EPA’s compliance monitoring file, samples taken from July 17, 2012 to Sept. 26, 2016. Newer results are in the utility’s annual water quality report.

Above the legal limit1

Arsenic

Comes from the source

Above the legal limit

10.3ppb

Highest yearly average, 2020 to 2026

2026 average: 6.2 ppb

Averaged by year, the highest was 10.3 ppb, in 2025, which EPA rounds to 10 ppb to compare: at its legal limit of 10 ppb, not above it. Its highest single sample was 13.1 ppb. In 2026, the latest year on file, its three samples averaged 6.2 ppb. EPA judges this limit at each sampling point, and recorded a violation for arsenic at this utility in 2025. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 20.6 ppb, in 2012.

What handles it

  • NSF/ANSI 58 look for “Arsenic (Pentavalent)<=50 ppb Reduction”
  • NSF/ANSI 53 look for “Arsenic (Pentavalent)<=50 ppb Reduction”

Above the limit’s level, no violation recorded1

Uranium

Comes from the source

Above the limit’s level, no violation

34.4ppb

Highest yearly average, 2020 to 2024

2024 average: 30.2 ppb

Averaged by year, the highest was 34.4 ppb, in 2023, above EPA’s legal limit of 30 ppb. Its highest single sample was 37.1 ppb. In 2024, the latest year on file, its eight samples averaged 30.2 ppb. EPA judges this limit on running averages at each sampling point, and recorded no violation for uranium at this utility since 2020. Results like these with no violation often include water sampled before treatment or blending; the utility’s annual report says what reaches the tap. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 33.7 ppb, in 2018.

What handles it

Above the health goal2

Nitrate

Comes from the source

Above the health goal

10.9ppm

Highest sample; found in 130 of 130

2026 average: 7.5 ppm

In 2024, two samples were above EPA’s legal limit of 10 ppm, the highest 10.9 ppm. Two have no follow-up sample on file within 30 days. 10 ppm is also EPA’s health goal. In 2026, the latest year on file, its eight samples averaged 7.5 ppm. EPA recorded no violation for nitrate at this utility since 2020. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 11 ppm, in 2013, and EPA recorded a violation in 2013.

What handles it

  • NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
  • NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”

Lead

Comes from pipes, often your own

Above the health goal

1.4ppb

90th percentile, 2023 to 2025

In the latest period, 9 in 10 homes sampled were at or below 1.4 ppb, below EPA’s action level of 15 ppb. The action level drops to 10 ppb on Nov. 1, 2027. EPA’s health goal for lead is zero.

What handles it

Below EPA’s limits1

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.43ppm

Highest yearly average, 2012 to 2016

2016, one sample: 0.36 ppm

Averaged by year, the highest was 0.43 ppm, in 2012, below EPA’s legal limit of 4.0 ppm. In 2016, the latest year on file, its one sample was 0.36 ppm.

What handles it

One compound tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Chromium (total)

What handles it

A certification covers specific claims, not a whole standard. Look for these claims on the certifier’s listing, not the box. Wording varies a little: NSF writes “Lead Reduction,” WQA just “Lead.”

  • NSF/ANSI 53

    Claims: Arsenic (Pentavalent)<=50 ppb Reduction, Nitrate/Nitrite (30 ppm challenge), Lead Reduction

    For: Arsenic, Nitrate, Lead

    Other certifiers’ wording: Arsenic (III) (50 ppb influent level)

  • NSF/ANSI 58

    Claims: Arsenic (Pentavalent)<=50 ppb Reduction, Uranium, Nitrate/Nitrite Reduction, Lead Reduction

    For: Arsenic, Uranium, Nitrate, Lead

    Other certifiers’ wording: Arsenic (Pentavalent)<=300 ppb Reduction; Arsenic (V) (300 ppb influent level); Nitrate

At the tap, or for the whole house?

Lead and copper usually come from pipes and fixtures inside or near your home. A whole-house system sits where water enters, so it cannot catch what your own plumbing adds after it. For those, the filter that counts is the one at the tap. How whole-house systems compare.

Filters with those claims on a certifier’s listing

Disclosure: TapBuff earns a commission if you buy through some links on this page. It does not change which standard or filter we name. As an Amazon Associate, TapBuff earns from qualifying purchases. How TapBuff makes money

Compare five-year costs

The best reverse osmosis systems, ranked

The best water filters for lead, ranked

Hardness

Very hard, typically 304 mg/L (17.8 grains per gallon), across 2 sampling points, 2022 to 2024.

Hardness is calcium and magnesium. EPA sets no limit for it: it shows up as scale on fixtures and in water heaters, and as soap that won’t lather. USGS calls water above 60 mg/L moderately hard, above 120 hard and above 180 very hard.

Softeners compared at 17.8 grains per gallon, salt includedSoftener or salt-free conditioner?Washington water hardness, utility by utility

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
ArsenicA sample was above the legal limit, for a contaminant judged one sample at a time.EPA: Maximum Contaminant Level Violation, Single SampleOct. 1, 2025 to Dec. 31, 20250.011 MG/LArchived
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 11 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Arsenic, uranium and nitrate results here are Washington’s own from 2020 on, with EPA’s national file for 2012 to 2019. Fluoride and chromium (total) come from EPA’s file alone, which ends in 2019. Country Villa Mobile Park’s own annual report, which it must send you every year, has newer results for those and the contaminants this page does not show.

  • Your own plumbing. Lead results are the 90th percentile across homes the utility samples. Your home’s service line, solder and fixtures decide yours. A certified lab test is the only way to know.

  • What it means for your health. This page reports what the records show and EPA’s limits and goals; it is not medical advice. If you are worried about a health effect, talk to a doctor or your local health department.

  • Anything after the latest data. SDWIS data is from 2026 Q3; UCMR 5 didn’t sample this utility; Washington’s results run from Jan. 7, 2020 to Aug. 17, 2026; EPA’s compliance samples are from July 17, 2012 to Sept. 26, 2016.

Testing your own tap

Country Villa Mobile Park’s results are for the water it sends out. What your own service line, solder and fixtures add shows up only in a test of your tap, by a lab Washington certifies.

No lab Washington certifies is within 75 miles of the area Country Villa Mobile Park serves on the state’s list. Some take samples by mail; the state’s page lists them all.

All 84 certified labs for Washington

Sources

PWSID WA5315518. Rebuilt from EPA data on Oct. 18, 2026.

Also in Stevens County

All Washington utilities

What to do next