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Country Club Estates 521

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
113 people
Connections
43
Water source
Groundwater
Based in
Lacey, WA
County
Thurston
Owner
Local government
Hardness
Hard
The ZIP code it serves

98502

The short answer

2 results are above the health goal. The worst: Lead, above the health goal. 16 health-based violations since 2016.

What handles it

What was found

Lead and copper: EPA SDWIS monitoring periods ending 2001 to 2024.

Arsenic, chromium (total), haloacetic acids (HAA5), total trihalomethanes (TTHM), nitrate and fluoride: Washington’s own results, samples taken from June 8, 2020 to July 7, 2026, with EPA’s 2012 to 2019 file for earlier years.

Above the health goal2

Lead

Comes from pipes, often your own

Above the health goal

6.6ppb

90th percentile, 2024

In the latest period, 9 in 10 homes sampled were at or below 6.6 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

Arsenic

Comes from the source

Above the health goal

1.6ppb

Highest yearly average, 2020 to 2025

2025: not found

Averaged by year, the highest was 1.6 ppb, in 2020: below EPA’s legal limit of 10 ppb, but above its health goal of zero. In 2025, the latest year on file, it wasn’t found in its one sample.

What handles it

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

Below EPA’s limits4

Chromium (total)

Comes from the source

Below EPA’s limits

43.6ppb

Highest yearly average, 2020 to 2025

2025: not found

Averaged by year, the highest was 43.6 ppb, in 2020, below EPA’s legal limit of 100 ppb. In 2025, the latest year on file, it wasn’t found in its one sample.

What handles it

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

25.1ppb

Highest yearly average, 2020 to 2025

2025, one sample: 15.6 ppb

Averaged by year, the highest was 25.1 ppb, in 2020, below EPA’s legal limit of 60 ppb. In 2025, the latest year on file, its one sample was 15.6 ppb. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 50.8 ppb, in 2018.

What handles it

No certification claim covers this compound yet.

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

19.3ppb

Highest yearly average, 2020 to 2025

Averaged by year, the highest was 19.3 ppb, in 2025, below EPA’s legal limit of 80 ppb. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 80.4 ppb, in 2019.

What handles it

  • NSF/ANSI 53 look for “Trihalomethanes (TTHM) Reduction”
  • NSF/ANSI 58 look for “Trihalomethanes (TTHM) Reduction”

Nitrate

Comes from the source

Below EPA’s limits

1.8ppm

Highest sample; found in 6 of 10

2026, one sample: 1.6 ppm

The highest sample, in 2022, was 1.8 ppm, below EPA’s legal limit of 10 ppm. In 2026, the latest year on file, its one sample was 1.6 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 1.8 ppm, in 2017.

What handles it

  • NSF/ANSI 58 look for “Nitrate/Nitrite Reduction”
  • NSF/ANSI 53 look for “Nitrate/Nitrite (30 ppm challenge)”
One compound tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Fluoride

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: Lead Reduction, Arsenic (Pentavalent)<=50 ppb Reduction

    For: Lead, Arsenic

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

  • NSF/ANSI 58

    Claims: Lead Reduction, Arsenic (Pentavalent)<=50 ppb Reduction

    For: Lead, Arsenic

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

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 water filters for lead, ranked

The best reverse osmosis systems, ranked

Hardness

Hard, 135 mg/L (7.9 grains per gallon), at its one sampling point, 2020 to 2025.

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 7.9 grains per gallon, salt includedSoftener or salt-free conditioner?Washington water hardness, utility by utility

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)July 1, 2022 to July 31, 2022—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)June 1, 2022 to June 30, 2022—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)Dec. 1, 2021 to Dec. 31, 2021—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)Sept. 1, 2021 to Sept. 30, 2021—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)July 1, 2021 to July 31, 2021—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)June 1, 2021 to June 30, 2021—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)Nov. 1, 2020 to Nov. 30, 2020—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)Sept. 1, 2020 to Sept. 30, 2020—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)Aug. 1, 2020 to Aug. 31, 2020—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)July 1, 2020 to July 31, 2020—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)June 1, 2020 to June 30, 2020—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)April 1, 2020 to April 30, 2020—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)March 1, 2019 to March 31, 2019—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)Jan. 1, 2019 to Jan. 31, 2019—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)Oct. 1, 2018 to Oct. 31, 2018—Resolved
Groundwater RuleRequired treatment for surface water or groundwater was not met.EPA: Treatment Technique (SWTR and GWR)Feb. 1, 2018 to Feb. 28, 2018—Resolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 25 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Arsenic, chromium (total), haloacetic acids (HAA5), total trihalomethanes (TTHM), nitrate and fluoride results here are Washington’s own from 2020 on, with EPA’s national file for 2012 to 2019. Country Club Estates 521’s own annual report, which it must send you every year, has 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 June 8, 2020 to July 7, 2026.

Testing your own tap

Country Club Estates 521’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.

The 3 labs Washington certifies closest to the area Country Club Estates 521 serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Olympic Analytical LLC dba Vanguard Laboratory

    Olympia, WA · under a mile

    Certified for bacteria, nitrate

    (360) 967-7010

  • Thurston County Health Department Laboratory

    Olympia, WA · about 7 miles

    Certified for bacteria, nitrate

    (360) 867-2631

  • Grays Harbor County Water Testing Lab

    Montesano, WA · about 29 miles

    Certified for bacteria, nitrate

    (360) 249-4413

All 84 certified labs for Washington

Sources

PWSID WA5315502. Rebuilt from EPA data on Oct. 18, 2026.

Also in Thurston County

All Washington utilities

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