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Tap water quality report

Midland Water Association

EPA monitoring tested this supplier for 72 contaminants and detected 8. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

72
contaminants tested
8
detected
160
people served
79
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.

79
health-based violations
446
violations on file
1
still open
ViolationTypeStatusPeriod
TT Health-based Archived 2026-03-01 → 2026-03-31
TT Health-based Archived 2025-12-01 → 2025-12-31
TT Health-based Archived 2025-12-01 → 2025-12-31
TT Health-based Archived 2025-11-01 → 2025-11-30
TT Health-based Archived 2025-11-01 → 2025-11-30
TT Health-based Archived 2025-10-01 → 2025-10-31
TT Health-based Archived 2025-10-01 → 2025-10-31
TT Health-based Resolved 2025-08-01 → 2025-08-31
TT Health-based Resolved 2025-08-01 → 2025-08-31
TT Health-based Resolved 2025-05-01 → 2025-05-31

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
Lead
0.00047 mg/L 3.1%
of the EPA limit 0.0150 mg/L
 19/19 LCR 2027
Nitrate
1600 µg/L 16%
of the EPA limit 10000 µg/L
 16/16 SYR4 2012–2019
TTHM
42.88 µg/L 54%
of the EPA limit 80 µg/L
worst single sample: 66.4 µg/L
13/13 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
84.18 µg/L 140%
of the EPA limit, at the 95th percentile of samples — 60 µg/L
worst single sample: 100.9 µg/L
12/14 SYR4 2012–2019
Copper
328.4 µg/L 25%
of the EPA limit 1300 µg/L
worst single sample: 337 µg/L
3/16 SYR4 2012–2018
Lead
13.8 µg/L 92%
of the EPA limit 15 µg/L
worst single sample: 14 µg/L
2/17 SYR4 2012–2019
Barium
9.09 µg/L 0.5%
of the EPA limit 2000 µg/L
 1/1 SYR4 2019
Nitrate-Nitrite
559 µg/L 5.6%
of the EPA limit 10000 µg/L
 1/1 SYR4 2019
64 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-DAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined Radium (-226 And -228)Combined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MIDLAND WATER ASSOCIATION
Phone
503-709-7801
Email
[email protected]

Frequently asked questions about Midland Water Association

Is Midland Water Association tap water safe to drink?

EPA monitoring detected 8 contaminants in Midland Water Association'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 Midland Water Association's water?

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

How many people does Midland Water Association serve?

Midland Water Association reports serving 160 people in Oregon, per its EPA record.

Has Midland Water Association had any water quality violations?

The EPA has 446 violations on file for Midland Water Association, of which 79 are health-based (a contaminant limit or required treatment was breached) and 1 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.