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Tap water quality report

Ridgefield Public Works

EPA monitoring tested this supplier for 102 contaminants and detected 14. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

102
contaminants tested
14
detected
21,225
people served
0
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Local government
Counties served
Clark

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

0
health-based violations
1,376
violations on file
0
still open
ViolationTypeStatusPeriod
MON Monitoring Resolved 2023-02-01 → 2023-02-28
Other Monitoring Resolved 2010-07-01
MR Monitoring Resolved 2008-01-01 → 2010-12-31
MR Monitoring Resolved 2008-01-01 → 2010-12-31
MR Monitoring Resolved 2008-01-01 → 2010-12-31
MR Monitoring Resolved 2008-01-01 → 2010-12-31
MR Monitoring Resolved 2008-01-01 → 2010-12-31
MR Monitoring Resolved 2008-01-01 → 2010-12-31
MR Monitoring Resolved 2008-01-01 → 2010-12-31
MR Monitoring Resolved 2008-01-01 → 2010-12-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
320 µg/L 3.2%
of the EPA limit 10000 µg/L
 20/56 SYR4 2012–2019
Lead
0.0021 mg/L 14%
of the EPA limit 0.0150 mg/L
 16/16 LCR 2023
Chloroform
1.055 µg/L
No EPA limit set
worst single sample: 1.1 µg/L
4/17 SYR4 2012–2019
TTHM
2.403 µg/L 3%
of the EPA limit 80 µg/L
worst single sample: 2.58 µg/L
4/4 SYR4 2013–2017
Arsenic
1.95 µg/L 20%
of the EPA limit 10 µg/L
worst single sample: 2 µg/L
3/5 SYR4 2013–2017
Barium
23.6 µg/L 1.2%
of the EPA limit 2000 µg/L
worst single sample: 24 µg/L
3/5 SYR4 2013–2017
Bromodichloromethane
0.7800 µg/L
No EPA limit set
worst single sample: 0.8000 µg/L
3/11 SYR4 2012–2019
Chromium
2.9 µg/L 2.9%
of the EPA limit 100 µg/L
worst single sample: 3 µg/L
3/5 SYR4 2013–2017
Fluoride
170 µg/L 4.3%
of the EPA limit 4000 µg/L
 3/5 SYR4 2013–2017
Dichloroacetic Acid
6.89 µg/L
No EPA limit set
worst single sample: 6.9 µg/L
2/10 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
20.89 µg/L 35%
of the EPA limit 60 µg/L
worst single sample: 20.9 µg/L
2/10 SYR4 2013–2019
Copper
5 µg/L 0.4%
of the EPA limit 1300 µg/L
 1/5 SYR4 2013–2017
Dibromochloromethane
0.6800 µg/L
No EPA limit set
 1/11 SYR4 2012–2019
Trichloroacetic Acid
14 µg/L
No EPA limit set
 1/9 SYR4 2013–2019
88 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Steven Sampson

Frequently asked questions about Ridgefield Public Works

Is Ridgefield Public Works tap water safe to drink?

EPA monitoring detected 14 contaminants in Ridgefield Public Works's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Ridgefield Public Works's water?

EPA monitoring detected Nitrate, Lead, Chloroform, TTHM, Arsenic, and others. The full list with the level and data source for each is above.

How many people does Ridgefield Public Works serve?

Ridgefield Public Works reports serving 21,225 people in Washington, per its EPA record.

Has Ridgefield Public Works had any water quality violations?

The EPA has 1376 violations on file for Ridgefield Public Works, of which 0 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.