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Tap water quality report

City of Rainier

EPA monitoring tested this supplier for 61 contaminants and detected 10. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

61
contaminants tested
10
detected
1,932
people served
133
health-based violations
Oregon rankingsLead in OregonPFAS in Oregon
Water source
Surface water
Ownership
Local government
Counties served
Columbia

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.

133
health-based violations
326
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2001-09-01 → 2001-09-30
MCL Health-based Resolved 2001-09-01 → 2001-09-30
TT Health-based Resolved 2000-08-01 → 2000-08-31
TT Health-based Resolved 2000-07-01 → 2000-07-31
TT Health-based Resolved 2000-06-01 → 2000-06-30
TT Health-based Resolved 2000-05-01 → 2000-05-31
TT Health-based Resolved 2000-05-01 → 2000-05-31
TT Health-based Resolved 2000-04-01 → 2000-04-30
TT Health-based Resolved 2000-04-01 → 2000-04-30
TT Health-based Resolved 2000-03-01 → 2000-03-31

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
171 µg/L 13%
of the EPA limit 1300 µg/L
 28/28 SYR4 2014–2018
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 24/24 LCR 2026
TTHM
69.77 µg/L 87%
of the EPA limit 80 µg/L
 24/24 SYR4 2012–2019
Nitrate
270 µg/L 2.7%
of the EPA limit 10000 µg/L
 8/16 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
16.6 µg/L 28%
of the EPA limit 60 µg/L
 7/22 SYR4 2012–2019
Lead
6 µg/L 40%
of the EPA limit 15 µg/L
 5/28 SYR4 2014–2018
Diquat
2.6 µg/L 13%
of the EPA limit 20 µg/L
 1/9 SYR4 2013–2019
Endothall
47 µg/L 47%
of the EPA limit 100 µg/L
 1/7 SYR4 2013–2019
Nitrate-Nitrite
110 µg/L 1.1%
of the EPA limit 10000 µg/L
 1/2 SYR4 2012–2013
Xylenes, Total
1.3 µg/L 0%
of the EPA limit 10000 µg/L
 1/13 SYR4 2012–2019
51 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneChlorobenzeneCarbofuranCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMethoxychlorNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
CITY OF RAINIER
Phone
503-313-5871
Email
rreigel@cityofrainier.com

Frequently asked questions about City of Rainier

Is City of Rainier tap water safe to drink?

EPA monitoring detected 10 contaminants in City of Rainier'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 City of Rainier's water?

EPA monitoring detected Copper, Lead, TTHM, Nitrate, Total Haloacetic Acids (HAA5), and others. The full list with the level and data source for each is above.

How many people does City of Rainier serve?

City of Rainier reports serving 1,932 people in Oregon, per its EPA record.

Has City of Rainier had any water quality violations?

The EPA has 326 violations on file for City of Rainier, of which 133 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.