No health-based violations on EPA record since 2016.
Serves about 7,662 people (2,822 connections) with surface water bought from Left Hand WD, Town of Berthoud and Carter Lake Filter Plant.
From EPA's record for CO0162122. PurityMap is independent of Central Weld Cnty WD.
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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 2025 to October 2025.
| 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 | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| 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 | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| 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 | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| 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 | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| 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 | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| 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 | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| 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 | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-01-08 to 2025-10-07 | UCMR5 Analytical Results: CENTRAL WELD CNTY WD (CO0162122) |
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 →Central Weld Cnty WD's phone number on EPA record is 970-352-1284. Its mailing address is 2235 2ND AVE, GREELEY, CO 80631.
According to EPA's record, Central Weld Cnty WD uses surface water bought from Left Hand WD, Town of Berthoud and Carter Lake Filter Plant.
No health-based violations on EPA record since 2016. EPA also lists 1 missed or late test or report in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Central Weld Cnty WD's latest lead and copper round, which ended in December 1999, was 6 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Central Weld Cnty WD. Its phone number on EPA record is 970-352-1284. Its mailing address on EPA record is 2235 2ND AVE, GREELEY, CO 80631. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.