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Brighton Village LLC

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
77 people
Connections
29
Water source
Surface water bought from another system
Based in
Windsor, CO
County
Adams
Owner
Private
Hardness
Very hard

The short answer

1 result is above EPA’s legal limit, and 2 more are above the health goal. The worst: Nitrate, above the legal limit. 11 health-based violations since 2016.

What handles it

What was found

Lead and copper: EPA SDWIS monitoring periods ending 2022 to 2026.

Nitrate, total trihalomethanes (TTHM), haloacetic acids (HAA5) and fluoride: Colorado’s own results, samples taken from Jan. 6, 2020 to Aug. 12, 2026, with EPA’s 2012 to 2019 file for earlier years.

Arsenic, chromium (total) and uranium: EPA’s compliance monitoring file, samples taken from Feb. 7, 2012 to June 12, 2018. Newer results are in the utility’s annual water quality report.

Above the legal limit1

Nitrate

Comes from the source

Above the legal limit

12.5ppm

Highest sample; found in 23 of 23

2021 average: 5.3 ppm

In 2020, three samples were above EPA’s legal limit of 10 ppm, the highest 12.5 ppm. The next sample at the same point, within 30 days, kept the average above the limit for one; two came back under. In 2021, the latest year on file, its eight samples averaged 5.3 ppm. EPA recorded a violation for nitrate at this utility in 2020. Earlier, from 2012 to 2019, EPA’s file shows a highest sample of 25.8 ppm, in 2012, and EPA recorded violations in 2012, 2013, 2014, 2016, 2017, 2018 and 2019.

What handles it

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

Above the health goal2

Arsenic

Comes from the source

Above the health goal

6.0ppb

Highest yearly average, 2012 to 2018

2018: not found

Averaged by year, the highest was 6.0 ppb, in 2012: below EPA’s legal limit of 10 ppb, but above its health goal of zero. In 2018, 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”

Lead

Comes from pipes, often your own

Above the health goal

1.5ppb

90th percentile, 2026

In the latest period, 9 in 10 homes sampled were at or below 1.5 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 limits4

Total trihalomethanes (TTHM)

Forms or is added in treatment

Below EPA’s limits

75.4ppb

Highest yearly average, 2021 to 2026

Averaged by year, the highest was 75.4 ppb, in 2026, 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 5.7 ppb, in 2018.

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

23.8ppb

Highest yearly average, 2021 to 2026

Averaged by year, the highest was 23.8 ppb, in 2026, 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 8.6 ppb, in 2012.

What handles it

No certification claim covers this compound yet.

Fluoride

Forms or is added in treatment

Below EPA’s limits

0.66ppm

Highest yearly average, 2025

Averaged by year, the highest was 0.66 ppm, in 2025, below EPA’s legal limit of 4.0 ppm. That is the only year on file. Earlier, from 2012 to 2019, EPA’s file shows a highest yearly average of 0.86 ppm, in 2018.

What handles it

Chromium (total)

Comes from the source

Below EPA’s limits

5.0ppb

Highest yearly average, 2012 to 2018

2018: not found

Averaged by year, the highest was 5.0 ppb, in 2012, below EPA’s legal limit of 100 ppb. In 2018, the latest year on file, it wasn’t found in its one sample.

What handles it

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

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

    For: Nitrate, Arsenic, Lead

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

  • NSF/ANSI 58

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

    For: Nitrate, Arsenic, Lead

    Other certifiers’ wording: Nitrate; 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 reverse osmosis systems, ranked

The best water filters for lead, ranked

Hardness

Very hard, typically 190 mg/L (11.1 grains per gallon), across 2 sampling points, in 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 11.1 grains per gallon, salt includedSoftener or salt-free conditioner?Colorado water hardness, utility by utility

Violations since 2016

Contaminant or ruleTypePeriodMeasuredStatus
NitrateThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageMay 1, 2020 to May 31, 202012 MG/LResolved
NitrateThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageNov. 1, 2019 to Nov. 30, 201913 MG/LResolved
NitrateThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageOct. 1, 2019 to Oct. 31, 201914 MG/LResolved
NitrateThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageAug. 1, 2019 to Aug. 31, 201914.5 MG/LResolved
NitrateThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJune 1, 2019 to June 30, 201915 MG/LResolved
NitrateThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageMay 1, 2019 to May 31, 201915 MG/LResolved
NitrateThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageOct. 1, 2018 to Oct. 31, 201814 MG/LResolved
NitrateThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageMay 1, 2018 to May 31, 201811 MG/LResolved
NitrateThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageNov. 1, 2017 to Nov. 30, 201713 MG/LResolved
NitrateThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageFeb. 1, 2016 to Feb. 29, 201616.3 MG/LResolved
NitrateThe running average was above the legal limit.EPA: Maximum Contaminant Level Violation, AverageJan. 1, 2016 to Jan. 31, 201611.8 MG/LResolved
Health-based violations only. Resolved and archived mean the utility returned to compliance or the state closed the record.

What this report can’t tell you

  • Everything else. Nitrate, total trihalomethanes (TTHM), haloacetic acids (HAA5) and fluoride results here are Colorado’s own from 2020 on, with EPA’s national file for 2012 to 2019. Arsenic, chromium (total) and uranium come from EPA’s file alone, which ends in 2019. Brighton Village LLC’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 Jan. 6, 2020 to Aug. 12, 2026; EPA’s compliance samples are from Feb. 7, 2012 to June 12, 2018.

Testing your own tap

Brighton Village LLC’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.

No lab Colorado certifies is within 75 miles of the area Brighton Village LLC serves on the state’s list. Some take samples by mail; the state’s page lists them all.

All 54 certified labs for Colorado

Sources

PWSID CO0101030. Rebuilt from EPA data on Oct. 18, 2026.

Also in Adams County

All Colorado utilities

What to do next