Colton Water Department
Published drinking-water records and contacts for Colton Water Department. System WA5314100. Review sources and dates; not a real-time water assessment.
- System ID
- WA5314100
- State or territory
- WA
- Published population served
- 632
- System type (source code)
- CWS
Published records and dates
- Lead and copper monitoring summaries: 15 — 1993-07-01 – 2023-12-31
- Washington DOH PFAS test results: 92 — 2024-11-14 – 2025-05-13
Missing records here do not mean the provider did not test. Published records are not a real-time assessment of your tap water.
Published testing results
Selected recent records are shown below. Different sampling locations and dates are not interchangeable. These excerpts are not a complete testing history.
“<” means below the stated reporting limit, not zero. A reported measurement alone is not a safety verdict. Read an example
Lead and copper: 90th-percentile summaries
These describe a monitoring period across sampled locations, not the result at your home. How to read the 90th percentile
| Substance | Published 90th percentile | Monitoring period | Source quarter |
|---|---|---|---|
| Lead (PB90) | 0.0041 mg/L | 2021-01-01 – 2023-12-31 | 2026Q3 |
| Lead (PB90) | 0.0015 mg/L | 2018-01-01 – 2020-12-31 | 2026Q3 |
| Lead (PB90) | 0.0029 mg/L | 2015-01-01 – 2017-12-31 | 2026Q3 |
| Lead (PB90) | 0.0024 mg/L | 2012-01-01 – 2014-12-31 | 2026Q3 |
| Lead (PB90) | 0.002 mg/L | 2010-01-01 – 2011-12-31 | 2026Q3 |
| Lead (PB90) | 0.003 mg/L | 2007-01-01 – 2009-12-31 | 2026Q3 |
| Lead (PB90) | 0.0025 mg/L | 2004-01-01 – 2006-12-31 | 2026Q3 |
| Lead (PB90) | 0.002 mg/L | 2000-01-01 – 2002-12-31 | 2026Q3 |
| Substance | Published result | Sample date | Location / source |
|---|---|---|---|
| ADONA | Below a limit; numeric threshold unavailable ng/L | 2025-05-13 | 04 / Washington DOH PFAS test results |
| PFUnA | Below a limit; numeric threshold unavailable ng/L | 2025-05-13 | 04 / Washington DOH PFAS test results |
| PFHpS | Below a limit; numeric threshold unavailable ng/L | 2025-05-13 | 03 / Washington DOH PFAS test results |
| PFMPA | Below a limit; numeric threshold unavailable ng/L | 2025-05-13 | 04 / Washington DOH PFAS test results |
| PFHxS | Below a limit; numeric threshold unavailable ng/L | 2025-05-13 | 03 / Washington DOH PFAS test results |
| PFDoA | Below a limit; numeric threshold unavailable ng/L | 2025-05-13 | 03 / Washington DOH PFAS test results |
| PFPeS | Below a limit; numeric threshold unavailable ng/L | 2025-05-13 | 04 / Washington DOH PFAS test results |
| PFBA | Below a limit; numeric threshold unavailable ng/L | 2025-05-13 | 03 / Washington DOH PFAS test results |
| PFOS | Below a limit; numeric threshold unavailable ng/L | 2025-05-13 | 03 / Washington DOH PFAS test results |
| PFPeA | Below a limit; numeric threshold unavailable ng/L | 2025-05-13 | 04 / Washington DOH PFAS test results |
| ADONA | Below a limit; numeric threshold unavailable ng/L | 2025-05-13 | 03 / Washington DOH PFAS test results |
| 11Cl-PF3OUdS | Below a limit; numeric threshold unavailable ng/L | 2025-05-13 | 03 / Washington DOH PFAS test results |
State sampling points can include untreated water. Publisher qualifiers and units are retained; consult the full source notes before interpreting a record.
Download state records with source notes (CSV)
Published compliance history
9 imported records. Status is as recorded in the source; historical records are not current advisories. Missing records do not establish that no violations occurred.
| Rule / record | Period | Recorded status | Health-based (EPA classification) | Source quarter |
|---|---|---|---|---|
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2018-01-01 – 2018-12-31 | Resolved | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2018-01-01 – 2018-12-31 | Resolved | No | 2026Q3 |
| Stage 2 Disinfectants and Disinfection Byproducts Rule / Monitoring and Reporting (DBP) | 2017-01-01 – 2017-12-31 | Resolved | No | 2026Q3 |
| Synthetic Organic Chemicals / Monitoring, Regular | 2008-01-01 – 2010-12-31 | Archived | No | 2026Q3 |
| Lead and Copper Rule / Follow-up Or Routine LCR Tap M/R | 2000-01-01 – — | Unaddressed | No | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1993-08-01 – 1993-08-31 | Archived | No | 2026Q3 |
| Total Coliform Rule / Maximum Contaminant Level Violation, Acute (TCR) | 1993-05-01 – 1993-05-31 | Archived | Yes | 2026Q3 |
| Total Coliform Rule / Monitoring, Routine Major (TCR) | 1992-08-01 – 1992-08-31 | Archived | No | 2026Q3 |
| Radionuclides and Revised Rad Rule / Monitoring, Regular | 1979-10-01 – 1979-10-31 | Archived | No | 2026Q3 |
Source dates and refresh checks
A refresh check is not a sample date. Publication periods, sample dates and checks are shown separately.
- EPA SDWIS lead/copper summaries and service areas — source period: — – —; last checked: 2026-10-17
- EPA SDWIS contacts and compliance records — source period: — – —; last checked: 2026-10-17
- EPA UCMR 5 sample results — source period: 2023-01-03 – 2026-06-17; last checked: 2026-10-17
- Washington DOH PFAS test results — last successful check: 2026-10-13
An administrative filing contact may not be a customer-service line. Confirm current contact details with the provider.