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Agate WA

What EPA’s and Colorado’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
152 people
Connections
43
Water source
Groundwater
Based in
Agate, CO
County
Elbert
Owner
Private
The ZIP code it serves

80101

The short answer

Nothing in EPA’s and Colorado’s records for this utility is above a health goal. That covers nitrate, arsenic and other regulated chemicals, plus lead and copper, not everything. 5 health-based violations since 2016.

What was found

Total trihalomethanes (TTHM), haloacetic acids (HAA5), fluoride, chromium (total), arsenic and nitrate: Colorado’s own results, samples taken from Feb. 20, 2020 to Feb. 9, 2026, with EPA’s 2012 to 2019 file for earlier years.

Uranium: EPA’s compliance monitoring file, samples taken from Nov. 11, 2013 to Nov. 11, 2013. Newer results are in the utility’s annual water quality report.

Below EPA’s limits4

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

45.2ppb

Highest yearly average, 2020 to 2025

Averaged by year, the highest was 45.2 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 71.6 ppb, in 2013.

What handles it

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

Haloacetic acids (HAA5)

Forms or is added in treatment

Below EPA’s limits

12.1ppb

Highest yearly average, 2020 to 2025

Averaged by year, the highest was 12.1 ppb, in 2025, below EPA’s legal limit of 60 ppb. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 35.1 ppb, in 2013.

What handles it

No certification claim covers this compound yet.

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.54ppm

Highest yearly average, 2021 to 2025

2025, one sample: 0.5 ppm

Averaged by year, the highest was 0.54 ppm, in 2021, below EPA’s legal limit of 4.0 ppm. In 2025, the latest year on file, its one sample was 0.5 ppm. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.66 ppm, in 2012.

What handles it

Chromium (total)

Comes from the source

Below EPA’s limits

6.0ppb

Highest yearly average, 2022 to 2025

Averaged by year, the highest was 6.0 ppb, in 2025, below EPA’s legal limit of 100 ppb. That was also the latest year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 2.0 ppb, in 2012.

What handles it

4 compounds tested and not foundBelow the reporting level in every sample. Not found is not the same as zero.
  • Arsenic
  • Lead
  • Nitrate
  • Uranium

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
Groundwater RuleA significant problem found in a state inspection was not fixed on time.EPA: Failure To Address DeficiencyOct. 15, 2023—Resolved
Groundwater RuleA significant problem found in a state inspection was not fixed on time.EPA: Failure To Address DeficiencyJuly 1, 2023—Resolved
Groundwater RuleA significant problem found in a state inspection was not fixed on time.EPA: Failure To Address DeficiencyApril 21, 2019—Resolved
Groundwater RuleA significant problem found in a state inspection was not fixed on time.EPA: Failure To Address DeficiencyApril 21, 2019—Resolved
Groundwater RuleA significant problem found in a state inspection was not fixed on time.EPA: Failure To Address DeficiencyApril 21, 2019—Resolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record. 49 monitoring or reporting violations not shown.

What this report can’t tell you

  • Everything else. Total trihalomethanes (TTHM), haloacetic acids (HAA5), fluoride, chromium (total), arsenic and nitrate results here are Colorado’s own from 2020 on, with EPA’s national file for 2012 to 2019. Uranium comes from EPA’s file alone, which ends in 2019. Agate WA’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; Colorado’s results run from Feb. 20, 2020 to Feb. 9, 2026; EPA’s compliance samples are from Nov. 11, 2013 to Nov. 11, 2013.

Testing your own tap

Agate WA’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 Colorado certifies.

The 3 labs Colorado certifies closest to the area Agate WA serves, in a straight line. Call first: certification is test by test, and not every lab takes samples from homeowners.

  • Colorado Department of Health & Environment

    Denver, CO · about 52 miles

    Certified for bacteria

  • SGS North America, Inc. - Denver

    Denver, CO · about 53 miles

    Certified for nitrate, lead and copper, metals, minerals and other inorganics

  • El Paso County Health Department

    Colorado Springs, CO · about 55 miles

    Certified for bacteria, nitrate, minerals and other inorganics

All 54 certified labs for Colorado

Sources

PWSID CO0120001. Rebuilt from EPA data on Oct. 18, 2026.

Also in Elbert County

All Colorado utilities

What to do next