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  1. PurityMap
  2. Water Quality
  3. Minnesota
  4. Saint PeterMN1520006
Change
Updated 2026-10-15
Water system record · MN1520006

Saint Peter

Saint Peter serves 12,198 people from groundwater. 31 results are on record. No measured result is above a legal limit.

Explore the findingsIs this my supplier?Follow
Purity ScoreHow the 99 is builtMN1520006 · 12,198 served
99/100 · ExcellentConfidence: moderate
above a reference
0
detected, within reference or no limit
2
not detected
29
  • PFAS (forever chemicals)100
  • Metals & lead97
  • Disinfection by-products—Not monitored
  • Track record (violations)100

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

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

Source
Groundwater
Serves 1 city area on record.
Population
12,198
as reported to EPA
Type
Community Water System
Minnesota
Cities
1
Saint Peter
Records
31 results
latest 2024
FindingsAll resultsComplianceWhat you can doProductsRecordsFAQ
What stands out

No measured result is above a legal limit

No measured result is above a legal limit.

Coverage by group

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

2 detected results, by distance from their limit

  • Li
    LithiumEPA UCMR 5 · 2023
    10 µg/L EPA health reference level (screening, not a legal limit)
    9.5µg/L
    Within reference
  • Pb
    Lead (90th percentile)EPA SDWIS (Lead & Copper Rule) · 2024
    15 µg/L federal action level
    1µg/L
    Within reference
29 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
  • PFBA
  • PFBS
  • PFDA
  • PFDoA
  • PFEESA
  • PFHpA
  • PFHpS
  • PFHxA
  • PFHxS
  • PFMBA
  • PFMPA
  • PFNA
  • PFOA
  • PFOS
  • PFPeA
  • PFPeS
  • PFTA
  • PFTrDA
  • PFUnA

Compliance and coverage

Lead service lines

3,276service lines inventoried

  • Lead19
  • Galvanized, to replace5
  • Material unknown3
  • Not lead3,249

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

Compliance

0health-based violations in the last 10 years

From EPA SDWIS. A clean violation history means no enforcement action was recorded; it does not cover contaminants without a limit.

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 · LeadLead-certified carbon filter, or reverse osmosis

    lead 1 µg/L, below the 15 µg/L action level

    NSF/ANSI 53 (lead)
    Treatment for Lead →

Understand water treatment technologies →

Understand:Lead in Saint Peter

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

    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

Questions

Frequently asked questions

Who does Saint Peter serve?

Saint Peter (PWS ID MN1520006) is a public water system serving 12,198 people in Saint Peter, Minnesota.

Where does Saint Peter get its water?

Saint Peter is on record as drawing from groundwater. The source shapes which contaminants matter most for this system.

What does Saint Peter's monitoring record show?

PurityMap's record for Saint Peter holds 31 findings: 2 detected within the reference and 29 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 Saint Peter's water safe to drink?

PurityMap does not issue a safety verdict. It publishes Saint Peter'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 Saint Peter data?

The latest published record for Saint Peter 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 Saint Peter'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 Saint Peter?

Lithium and Lead (90th percentile) 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 lead in Saint Peter'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 Saint Peter

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
  • Saint Peter

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 transparency2023-02-28 to 2023-08-07Not detected—
1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS)< 3 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS)< 5 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS)< 2 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
4,8-Dioxa-3H-perfluorononanoic acid (ADONA)< 3 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals)< 5 ng/L10 ng/L federal MCL (2024)2023-02-28 to 2023-08-07Not detected—
N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA)< 5 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Nonafluoro-3,6-dioxaheptanoic acid (NFDHA)< 20 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA)< 6 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Perfluorobutanoic acid (PFBA)< 5 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Perfluorobutanesulfonic acid (PFBS)< 3 ng/L2,000 ng/L EPA health advisory (screening, not a legal limit)2023-02-28 to 2023-08-07Not detected—
Perfluorodecanoic acid (PFDA)< 3 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Perfluorododecanoic acid (PFDoA)< 3 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA)< 3 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Perfluoroheptanoic acid (PFHpA)< 3 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Perfluoroheptanesulfonic acid (PFHpS)< 3 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Perfluorohexanoic acid (PFHxA)< 3 ng/L400,000 ng/L Michigan EGLE state MCL (strictest US state)2023-02-28 to 2023-08-07Not detected—
Perfluorohexanesulfonic acid (PFHxS)< 3 ng/L10 ng/L federal MCL (2024)2023-02-28 to 2023-08-07Not detectedView evidence
Perfluoro-4-methoxybutanoic acid (PFMBA)< 3 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Perfluoro-3-methoxypropanoic acid (PFMPA)< 4 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Perfluorononanoic acid (PFNA)< 4 ng/L10 ng/L federal MCL (2024)2023-02-28 to 2023-08-07Not detected—
Perfluorooctanoic acid (PFOA)< 4 ng/L4.0 ng/L federal MCL (2024)2023-02-28 to 2023-08-07Not detectedView evidence
Perfluorooctanesulfonic acid (PFOS)< 4 ng/L4.0 ng/L federal MCL (2024)2023-02-28 to 2023-08-07Not detectedView evidence
Perfluoropentanoic acid (PFPeA)< 3 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Perfluoropentanesulfonic acid (PFPeS)< 4 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Perfluorotetradecanoic acid (PFTA)< 8 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Perfluorotridecanoic acid (PFTrDA)< 7 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Perfluoroundecanoic acid (PFUnA)< 2 ng/LNo federal or state limit; shown for transparency2023-02-28 to 2023-08-07Not detected—
Lithium9.5 µg/L10 µg/L EPA health reference level (screening, not a legal limit)2023-02-28 to 2023-08-07Below limitView evidence
Lead (90th percentile)1 µg/L15 µg/L federal action level2024–2026 monitoring period (still open)Below limitView evidence
  • UCMR5 Analytical Results

    UCMR5 Analytical Results: Saint Peter (MN1520006)

    US EPA

    Published
    2026-10-15
    Newest sample
    2023-08-07
    Findings here
    30

    View source ↗Source record

  • State SDWIS Compliance Record

    Lead & Copper Rule 90th-percentile: Saint Peter (MN1520006)

    US EPA SDWIS

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

    View source ↗Source record

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

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 lead found in water from Saint Peter

★ Best choice: Brita Elite Water Filter Pitcher, certified for lead.

Filters for the lead found in water from Saint Peter
PickProductCertificationPriceLink
★ Best choiceBrita Elite Water Filter PitcherBritaCertified for Lead (NSF/ANSI 53, WQA)$Check price on Amazon
Also goodAquasana Claryum 3-Stage Max Flow Under-Sink Filter (AQ-6300M)AquasanaCertified for Lead (NSF/ANSI 53, WQA)$$Check price at Aquasana
Also goodAquasana Clean Water Machine Countertop Filter (AQ-CWM2)AquasanaCertified for Lead (NSF/ANSI 53, WQA)$$Check price at Aquasana
See all 16 drinking-water options for lead
More drinking-water options for lead
PickProductCertificationPriceLink
Also goodSmartFlow® Reverse OsmosisAquasana · Treats only drinking water at its own faucet, not showers or the rest of the house.Certified for lead (WQA)$$$Check price at Aquasana
Also goodWaterdrop G3P600 Tankless Reverse-Osmosis SystemWaterdropCertified for Lead (NSF/ANSI 58-2024, IAPMO)$$$Check price at Waterdrop
Also goodWaterdrop G3P800 Tankless Reverse-Osmosis SystemWaterdropCertified for Lead (NSF/ANSI 58-2024, IAPMO)

★ Best available: iSpring WGB32B-PFKS PFAS & Heavy Metals Whole House Filter, the best fit here; nothing in this group is certified yet.

Filters for the lead found in water from Saint Peter
PickProductCertificationPriceLink
★ Best availableiSpring 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, not independently certified for lead$$$Check price at iSpring

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.

Lead service lines

Ask your utility first

Saint Peter reported 19 lead and 5 galvanized service lines to replace in EPA’s inventory (2026Q2). Many utilities replace these lines for free or share the cost. Ask Saint Peter whether your home’s line is on its list before you pay anyone.

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
$$$
Check price at Waterdrop
Also goodAquaTru Carafe Countertop Reverse-Osmosis Purifier (AT100)AquaTruCertified for Lead (NSF/ANSI 58, IAPMO)$$$Check price on Amazon
Also goodAquaTru Classic Countertop Reverse-Osmosis Purifier (AT2000)AquaTruCertified for Lead (NSF/ANSI 58, IAPMO)$$$Check price on Amazon
Also goodAquasana Claryum 2-Stage Under-Sink Filter (AQ-5200)AquasanaCertified for Lead (NSF/ANSI 53, WQA)$$Check price on Amazon
Also goodCulligan ZeroWater 10-Cup Pitcher (ZEROP10)Culligan ZeroWaterCertified for Lead (NSF/ANSI 53, IAPMO)$Check price on Amazon
Also goodFrizzlife SP99 Under-Sink FilterFrizzlife Technology IncCertified for Lead (NSF/ANSI 53-2024, IAPMO)$$Check price on Amazon
Also goodPUR Plus Faucet Filter (FM2500V)PURCertified for Lead (NSF/ANSI 53, IAPMO)$Check price on Amazon
Also goodPatriot Pure Ultimate Water Filtration SystemPatriot Pure (4Patriots)Certified for Lead (NSF/ANSI 53, NSF, IAPMO)$$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, not independently certified for lead$$Check price at iSpring
Also goodiSpring RO5004F Tankless Reverse Osmosis System with UViSpring · Its PFAS and lead reduction claims are iSpring's own, with no third-party certification named for this model, and it treats only the water at its own faucet.Use code REFISPRING at checkout: 10% off your first iSpring order.Brand lab-tested, not independently certified for lead$$$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, not independently certified for lead$$$$Check price at Waterdrop