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  1. PurityMap
  2. Water Quality
  3. Colorado
  4. BRIGHTON CITY OFCO0101025
Change
Updated 2026-10-15
Water system record · CO0101025

Brighton City of

Brighton City of serves 56,304 people from surface water. 31 results are on record. Two PFAS, PFOA and PFOS, each had a sample above a 2024 EPA limit (not a violation: the limits are judged on a yearly average, due 2029); lithium sits above a screening level.

Explore the findingsIs this my supplier?Follow
Purity ScoreHow the 54 is builtCO0101025 · 56,304 served
54/100 · PoorConfidence: moderate
above a reference
3
detected, within reference or no limit
6
not detected
22
  • PFAS (forever chemicals)0
  • Metals & lead95
  • Disinfection by-products—Not monitored
  • Track record (violations)92

Subject scores out of 100. 3 of 4 subjects measured; disinfection pending a source.

Not in this score: Lithium. Listed in the findings, not graded by the Purity Score.

System-level record, not a test of your tap. How we score

Source
Surface Water
Serves 1 city area on record.
Population
56,304
as reported to EPA
Type
Community Water System
Colorado
Cities
1
Brighton
Records
31 results
latest 2024
FindingsAll resultsComplianceWhat you can doProductsRecordsFAQ
What stands out

Two PFAS with a sample above a 2024 EPA limit

Each bar is drawn in blocks of the 4.0 ng/L federal MCL (2024), so the length shows how far above it the result sits.

PFOS

Perfluorooctanesulfonic acid

2.6× the limit

10.6ng/L

Each block = 4.0 ng/L federal MCL (2024)

EPA UCMR 5 · sampled 2024Evidence
PFOA

Perfluorooctanoic acid

1.3× the limit

5.3ng/L

Each block = 4.0 ng/L federal MCL (2024)

EPA UCMR 5 · sampled 2024Evidence

Coverage by group

31 results on record
  • PFAS (forever chemicals)
    2 above · 5 detected · 22 not detected
  • Metals & lead
    1 detected
  • Disinfection by-products
    Not monitored
  • Other
    1 above
  • Above a limit or reference
  • Detected
  • Not detected
  • Not monitored
Every detected result

9 detected results, by distance from their limit

  • Li
    LithiumEPA UCMR 5 · 2024
    10 µg/L EPA health reference level (screening, not a legal limit)
    31.9µg/L
    Above screening
  • PFOS
    Perfluorooctanesulfonic acid (PFOS)EPA UCMR 5 · 2024
    4.0 ng/L federal MCL (2024)
    10.6ng/L
    Above EPA's 2024 limit (one sample)
  • PFOA
    Perfluorooctanoic acid (PFOA)EPA UCMR 5 · 2024
    4.0 ng/L federal MCL (2024)
    5.3ng/L
    Above EPA's 2024 limit (one sample)
  • PFHxS
    Perfluorohexanesulfonic acid (PFHxS)EPA UCMR 5 · 2024
    10 ng/L federal MCL (2024)
    7.1ng/L
    Within reference
  • Pb
    Lead (90th percentile)EPA SDWIS (Lead & Copper Rule) · 2023
    15 µg/L federal action level
    2µg/L
    Within reference
  • PFBS
    Perfluorobutanesulfonic acid (PFBS)EPA UCMR 5 · 2024
    2,000 ng/L EPA health advisory (screening, not a legal limit)
    7.4ng/L
    Within reference
  • PFHxA
    Perfluorohexanoic acid (PFHxA)EPA UCMR 5 · 2024
    400,000 ng/L Michigan EGLE state MCL (strictest US state)
    9.4ng/L
    Within reference
  • PFBA
    Perfluorobutanoic acid (PFBA)EPA UCMR 5 · 2024
    No federal or state limit; shown for transparency
    10.6ng/L
    Detected · no limit
  • PFPeA
    Perfluoropentanoic acid (PFPeA)EPA UCMR 5 · 2024
    No federal or state limit; shown for transparency
    19.3ng/L
    Detected · no limit
22 other contaminants tested, none detected
  • 11Cl-PF3OUdS
  • 4:2 FTS
  • 6:2 FTS
  • 8:2 FTS
  • 9Cl-PF3ONS
  • ADONA
  • HFPO-DA (GenX)
  • NEtFOSAA
  • NFDHA
  • NMeFOSAA
  • PFDA
  • PFDoA
  • PFEESA
  • PFHpA
  • PFHpS
  • PFMBA
  • PFMPA
  • PFNA
  • PFPeS
  • PFTA
  • PFTrDA
  • PFUnA

Compliance and coverage

Lead service lines

13,031service lines inventoried

  • Lead0
  • Galvanized, to replace0
  • Material unknown1,730
  • Not lead11,301

From the utility's inventory reported to EPA (2026Q2). Look up your address with the utility.

Compliance

1health-based violation in the last 10 years

From EPA SDWIS. Counted once per contaminant per year, as in the Track record score.

Not in this recordDisinfection by-products weren't monitored in this dataset

No result is not a pass. Your utility's annual water quality report may list them, and a certified lab test covers your own tap.

A federal limit (an MCL or action level) is an enforceable legal cap; a health goal is often stricter. Meeting the limit is a compliance fact, not a health clearance, and PurityMap publishes no overall compliance verdict.

What you can do

Test first, then treat what was found

  1. 01 · TestTest your own tap

    Plumbing inside a home can add lead that the system record can't show. A tap test tells you what reaches your glass.

    Certified lab
    How to test your tap →
  2. 02 · Treat PFASReverse osmosis, or carbon certified for PFAS

    PFOS 10.6 ng/L in one EPA sample, above the 4 ng/L limit EPA set in 2024 (+6 more PFAS detected)

    NSF/ANSI 53 or 58, with PFOA/PFOS/PFBS/PFHxA/PFHxS/PFBA/PFPeA named on the listing
    Treatment for PFAS →
  3. 03 · LeadLead-certified carbon filter, or reverse osmosis

    lead 2 µg/L, below the 15 µg/L action level

    NSF/ANSI 53 (lead)
    Treatment for Lead →

Understand water treatment technologies →

Understand:PFAS in BrightonLead in Brighton

Test your own tap

Screening tells you if something is worth a closer look; a lab result is the number you can act on.

As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure.

  • Screening: quick check, not lab-grade

    Safe Home DIY Lead in Drinking Water Combo Test Kit

    Safe Home (EnviroTestKits)

    Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb

    • Turnaround: 5 minutes
Questions

Frequently asked questions

Who does BRIGHTON CITY OF serve?

BRIGHTON CITY OF (PWS ID CO0101025) is a public water system serving 56,304 people in Brighton, Colorado.

Where does BRIGHTON CITY OF get its water?

BRIGHTON CITY OF is on record as drawing from surface water. The source shapes which contaminants matter most for this system.

What does BRIGHTON CITY OF's monitoring record show?

PurityMap's record for BRIGHTON CITY OF holds 31 findings: 3 above a reference, 4 detected within the reference, 2 detected with no limit and 22 not detected, from 31 evidence records. Every finding links to its source; a substance that was never monitored is shown as pending, not as a pass.

Is BRIGHTON CITY OF's water safe to drink?

PurityMap does not issue a safety verdict. It publishes BRIGHTON CITY OF's measured results against each contaminant's benchmark so you can read them in context. Safety depends on the specific finding, your plumbing, and how the water reaches your tap.

How current is this BRIGHTON CITY OF data?

The latest published record for BRIGHTON CITY OF is dated 2026-10-15. Utilities report on regulatory cycles, so results reflect the monitoring period rather than a live reading.

Does this assessment represent my home's tap water?

No. It is assessed at the water-system level from BRIGHTON CITY OF's own monitoring. It does not cover the service line to your building or the plumbing inside it, which can add lead and other metals after the water leaves the system. A tap test is the way to know what reaches your glass.

What contaminants were detected in BRIGHTON CITY OF?

Lithium, Perfluorooctanesulfonic acid (PFOS), Perfluorooctanoic acid (PFOA), Perfluorohexanesulfonic acid (PFHxS), Lead (90th percentile), Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA), Perfluorobutanoic acid (PFBA) and Perfluoropentanoic acid (PFPeA) were detected in this record. Each finding shows its measured value, its reference and its source on this page.

What should I do if I'm concerned about PFAS in BRIGHTON CITY OF's water?

Start with what the record shows: the PFAS findings above list each measured value against its reference. This record cannot show your home's plumbing, so a tap test tells you what reaches your glass. If you decide to treat your water, look for a filter whose certification covers the specific PFAS compounds in your record; the section "Certified for a concern found here" lists only products with a current certification record for these concerns.

What should I do if I'm concerned about lead in BRIGHTON CITY OF's water?

Start with what the record shows: the lead findings above list each measured value against its reference. This record cannot show your home's plumbing, so a tap test tells you what reaches your glass. If you decide to treat your water, look for a filter whose certification covers the specific contaminant in your record; the section "Certified for a concern found here" lists only products with a current certification record for these concerns.

Follow this water

Follow Brighton City of

One email when a new sampling round is published, a result moves above or below its reference, or the system's score changes.

Follow this water →
Cities served by this system
  • Brighton

As listed for this system in EPA's records. Your water bill names your supplier.

Sources and dataAll 31 records and their sourcesEPA UCMR 5 · EPA SDWIS (Lead & Copper Rule)+
SubstanceResultReferenceSampledStatusEvidence
11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS)< 5 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)2024-01-17 to 2025-08-19Not detected—
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
Perfluorobutanoic acid (PFBA)10.6 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Detected, no limitView evidence
Perfluorobutanesulfonic acid (PFBS)7.4 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)2024-01-17 to 2025-08-19Below limitView evidence
Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
Perfluoroheptanoic acid (PFHpA)< 3 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
Perfluorohexanoic acid (PFHxA)9.4 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)2024-01-17 to 2025-08-19Below limitView evidence
Perfluorohexanesulfonic acid (PFHxS)7.1 ng/L10 ng/L federal MCL (2024)2024-01-17 to 2025-08-19Below limitView evidence
Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)2024-01-17 to 2025-08-19Not detected—
Perfluorooctanoic acid (PFOA)5.3 ng/L4.0 ng/L federal MCL (2024)2024-01-17 to 2025-08-19Above guidelineView evidence
Perfluorooctanesulfonic acid (PFOS)10.6 ng/L4.0 ng/L federal MCL (2024)2024-01-17 to 2025-08-19Above guidelineView evidence
Perfluoropentanoic acid (PFPeA)19.3 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Detected, no limitView evidence
Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparency2024-01-17 to 2025-08-19Not detected—
Lithium31.9 µg/L10 µg/L EPA health reference level (screening, not a legal limit)2024-01-17 to 2025-08-19Above guidelineView evidence
Lead (90th percentile)2 µg/L15 µg/L federal action level2023–2023 monitoring periodBelow limitView evidence
  • UCMR5 Analytical Results

    UCMR5 Analytical Results: BRIGHTON CITY OF (CO0101025)

    US EPA

    Published
    2026-10-15
    Newest sample
    2025-08-19
    Findings here
    30

    View source ↗Source record

  • State SDWIS Compliance Record

    Lead & Copper Rule 90th-percentile: BRIGHTON CITY OF (CO0101025)

    US EPA SDWIS

    Published
    2026-10-13
    Newest sample
    2023
    Findings here
    1

    View source ↗Source record

Brighton water reportAll water systemsCompare with another systemFilter guide (general)Water quality mapHow we analyze waterReport a correctionClaim this utility profile

What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.

Check price on Amazon
  • Lab-certified results

    ETR Labs Basic Water Quality Test Kit

    ETR Laboratories

    50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria

    • Analyzed by Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638
    • Turnaround: 2–4 business days after the lab receives it

    What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.

    Check price on Amazon
  • When your results arrive, read them here → · Compare every kit we list

    Commercial

    Filters for the PFAS found in water from BRIGHTON CITY OF

    ★ Best choice: Aquasana Claryum 2-Stage Under-Sink Filter (AQ-5200), certified for PFOA, PFOS and lead.

    Filters for the PFAS found in water from BRIGHTON CITY OF
    PickProductCertificationPriceLink
    ★ Best choiceAquasana Claryum 2-Stage Under-Sink Filter (AQ-5200)AquasanaCertified for PFOA and PFOS (NSF/ANSI 53, WQA)$$Check price on Amazon
    Also goodAquasana Claryum 3-Stage Max Flow Under-Sink Filter (AQ-6300M)AquasanaCertified for PFOA and PFOS (NSF/ANSI 53, WQA)$$Check price at Aquasana
    Also goodAquasana Clean Water Machine Countertop Filter (AQ-CWM2)AquasanaCertified for PFOA and PFOS (NSF/ANSI 53, WQA)$$Check price at Aquasana
    See all 12 drinking-water options for PFAS
    More drinking-water options for PFAS
    PickProductCertificationPriceLink
    Also goodSmartFlow® Reverse OsmosisAquasana · Treats only drinking water at its own faucet, not showers or the rest of the house.Certified for PFOA and PFOS (NSF/ANSI 53 (includes P473), WQA)$$$Check price at Aquasana
    Also goodWaterdrop G3P600 Tankless Reverse-Osmosis SystemWaterdropCertified for PFOA and PFOS (NSF/ANSI 53, IAPMO)$$$Check price at Waterdrop
    Also goodWaterdrop G3P800 Tankless Reverse-Osmosis SystemWaterdrop

    ★ Best choice: HealthShield™, certified for PFOA, PFOS and PFHxS.

    Filters for the PFAS found in water from BRIGHTON CITY OF
    PickProductCertificationPriceLink
    ★ Best choiceHealthShield™Aquasana · Does not soften water or remove hardness minerals, and it needs a 120V outlet for its performance indicator.Certified for PFOA, PFOS and PFHxS (NSF/ANSI 53, WQA)$$$$Check price at Aquasana
    $ Budget pickiSpring WGB32B-PFKS PFAS & Heavy Metals Whole House FilteriSpring · It does not reduce total dissolved solids or soften hard water, and its PFAS result comes from SGS lab testing rather than an NSF/ANSI certification.Use code REFISPRING at checkout: 10% off your first iSpring order.Brand lab-tested for PFAS, not independently certified for PFOA, PFOS, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA), PFHxS, Perfluorobutanoic acid (PFBA) and Perfluoropentanoic acid (PFPeA)$$$Check price at iSpring

    Also: lead picks →

    Certified filters for lithium →

    PurityMap earns a commission from these links. "Best choice" and "Budget pick" go to certified products first; commission never decides them. As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure.

    Local help

    Think your plumbing may be adding lead?

    Call to be connected with a local plumbing provider about lead service lines, repiping or fixture replacement.

    Call a local plumber: (844) 976-3611
    Certified for PFOA and PFOS (NSF/ANSI 53, IAPMO)
    $$$
    Check price at Waterdrop
    Also goodAquaTru Carafe Countertop Reverse-Osmosis Purifier (AT100)AquaTruCertified for PFOA and PFOS (NSF/ANSI 53, IAPMO)$$$Check price on Amazon
    Also goodAquaTru Classic Countertop Reverse-Osmosis Purifier (AT2000)AquaTruCertified for PFOA and PFOS (NSF/ANSI 53, IAPMO)$$$Check price on Amazon
    Also goodPatriot Pure Ultimate Water Filtration SystemPatriot Pure (4Patriots)Certified for PFOA and PFOS (NSF/ANSI 53, NSF, IAPMO)$$Check price on Amazon
    Also goodiSpring RCC7AK Alkaline Reverse Osmosis SystemiSpring · It treats only the water from its own faucet and sends part of the water to the drain; the NSF listing for the plain RCC7AK covers dissolved solids, not lead or PFAS.Use code REFISPRING at checkout: 10% off your first iSpring order.Brand lab-tested for PFAS, not independently certified for PFOA, PFOS, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA), PFHxS, Perfluorobutanoic acid (PFBA) and Perfluoropentanoic acid (PFPeA)$$Check price at iSpring
    Also goodiSpring RO5004F Tankless Reverse Osmosis System with UViSpring · Its PFAS and lead reduction claims are iSpring's own, with no third-party certification named for this model, and it treats only the water at its own faucet.Use code REFISPRING at checkout: 10% off your first iSpring order.Brand lab-tested for PFAS, not independently certified for PFOA, PFOS, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA), PFHxS, Perfluorobutanoic acid (PFBA) and Perfluoropentanoic acid (PFPeA)$$$Check price at iSpring
    Also goodWaterdrop X12 Reverse Osmosis SystemWaterdrop · Its IAPMO NSF/ANSI 58 certification covers TDS reduction only, so its PFAS and lead claims rest on Waterdrop's own SGS lab testing.Brand lab-tested for PFAS, not independently certified for PFOA, PFOS, Perfluorobutanesulfonic acid (PFBS), Perfluorohexanoic acid (PFHxA), PFHxS, Perfluorobutanoic acid (PFBA) and Perfluoropentanoic acid (PFPeA)$$$$Check price at Waterdrop