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Tap water quality report

Longview Water Department

EPA monitoring tested this supplier for 106 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

106
contaminants tested
17
detected
57,617
people served
0
health-based violations
Washington rankingsLead in WashingtonPFAS in Washington
Water source
Ground water
Ownership
Local government
Counties served
Cowlitz

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
14
violations on file
0
still open
ViolationTypeStatusPeriod
Other Monitoring Resolved 2025-07-01
Other Monitoring Resolved 2022-07-01
MR Monitoring Resolved 2022-01-01 → 2022-03-31
Other Monitoring Resolved 2021-07-01
Other Monitoring Resolved 2016-07-01
MR Monitoring Archived 1979-10-01 → 1979-10-31
MR Monitoring Archived 1979-10-01 → 1979-10-31
MR Monitoring Archived 1979-10-01 → 1979-10-31
MR Monitoring Archived 1979-10-01 → 1979-10-31
MR Monitoring Archived 1979-10-01 → 1979-10-31

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
TTHM
59.635 µg/L 75%
of the EPA limit 80 µg/L
worst single sample: 71.6 µg/L
118/118 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
31 µg/L 52%
of the EPA limit 60 µg/L
worst single sample: 36 µg/L
117/117 SYR4 2012–2019
Dichloroacetic Acid
12.35 µg/L
No EPA limit set
worst single sample: 17 µg/L
114/114 SYR4 2012–2019
Bromodichloromethane
12 µg/L
No EPA limit set
worst single sample: 16 µg/L
110/111 SYR4 2012–2019
Chloroform
45 µg/L
No EPA limit set
worst single sample: 68 µg/L
110/111 SYR4 2012–2019
Trichloroacetic Acid
20 µg/L
No EPA limit set
worst single sample: 21 µg/L
103/107 SYR4 2012–2019
Dibromochloromethane
3.28 µg/L
No EPA limit set
worst single sample: 3.7 µg/L
93/108 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 18/18 LCR 2023
Gross Beta Particle Activity
4.5 pCi/L
No EPA limit set
worst single sample: 4.7 pCi/L
9/11 SYR4 2016–2018
Dibromoacetic Acid
13.85 µg/L
No EPA limit set
worst single sample: 17 µg/L
6/118 SYR4 2012–2019
Monobromoacetic Acid
13.85 µg/L
No EPA limit set
worst single sample: 14 µg/L
4/118 SYR4 2012–2019
Nitrate
270 µg/L 2.7%
of the EPA limit 10000 µg/L
 4/16 SYR4 2012–2019
Arsenic
2.95 µg/L 30%
of the EPA limit 10 µg/L
worst single sample: 3 µg/L
2/2 SYR4 2013–2016
Barium
5.57 µg/L 0.3%
of the EPA limit 2000 µg/L
worst single sample: 5.6 µg/L
2/2 SYR4 2013–2016
Fluoride
590.5 µg/L 15%
of the EPA limit 4000 µg/L
worst single sample: 610 µg/L
2/2 SYR4 2013–2016
Monochloroacetic Acid
2.69 µg/L
No EPA limit set
worst single sample: 2.7 µg/L
2/118 SYR4 2012–2019
Chromium
2 µg/L 2%
of the EPA limit 100 µg/L
 1/2 SYR4 2013–2016
89 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, TotalBromoformChlorobenzeneCopperCyanideCadmiumCarbon TetrachlorideChlordaneCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebDiquatEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoLeadMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitrate-NitriteNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
Seth Cockrill

Frequently asked questions about Longview Water Department

Is Longview Water Department tap water safe to drink?

EPA monitoring detected 17 contaminants in Longview Water Department'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 Longview Water Department's water?

EPA monitoring detected TTHM, Total Haloacetic Acids (HAA5), Dichloroacetic Acid, Bromodichloromethane, Chloroform, and others. The full list with the level and data source for each is above.

How many people does Longview Water Department serve?

Longview Water Department reports serving 57,617 people in Washington, per its EPA record.

Has Longview Water Department had any water quality violations?

The EPA has 14 violations on file for Longview Water Department, 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.