No health-based violations on EPA record since 2016.
Serves about 5,398 people (1,999 connections) with surface water bought from Central Brown Co Water Authority.
From EPA's record for WI4051625. PurityMap is independent of Lawrence Waterworks.
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No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from January 2023 to October 2023.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2023-01-23 to 2023-10-18 | UCMR5 Analytical Results: LAWRENCE WATERWORKS (WI4051625) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
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Screening: quick check, not lab-grade
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.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 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.
Get PurityMap updates about this water system.
Follow this water →According to EPA's record, Lawrence Waterworks uses surface water bought from Central Brown Co Water Authority.
No health-based violations on EPA record since 2016. The record comes from EPA's SDWIS compliance database.
Lead was not detected at the 90th percentile of tap samples in Lawrence Waterworks's latest lead and copper round, which ended in September 2023. The federal action level is 15 µg/L.
PurityMap has no verified website for Lawrence Waterworks. Its mailing address on EPA record is TOWN OF LAWRENCE, 2400 SHADY CT, DE PERE, WI 54115. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.