Is Marion Municipal Water Dept Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Linn

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.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2015-01-01 → 2015-03-31
MCL	Health-based	Resolved	2015-01-01 → 2015-03-31
MCL	Health-based	Resolved	2015-01-01 → 2015-03-31
MCL	Health-based	Resolved	2015-01-01 → 2015-03-31
MCL	Health-based	Resolved	2003-10-01 → 2003-10-31
MCL	Health-based	Resolved	2003-10-01 → 2003-10-31
MCL	Health-based	Resolved	2003-10-01 → 2003-10-31
MCL	Health-based	Resolved	2003-10-01 → 2003-10-31
MCL	Health-based	Resolved	2003-10-01 → 2003-10-31
MCL	Health-based	Resolved	1995-09-01 → 1995-09-30

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.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Fluoride	1380 µg/L 35% of the EPA limit 4000 µg/L worst single sample: 1960 µg/L	96/96	SYR4	2012–2019
Copper	143.8 µg/L 11% of the EPA limit 1300 µg/L worst single sample: 275 µg/L	90/90	SYR4	2012–2018
Lead	6.775 µg/L 45% of the EPA limit 15 µg/L worst single sample: 21.9 µg/L	56/90	SYR4	2012–2018
Nitrate	1345 µg/L 13% of the EPA limit 10000 µg/L worst single sample: 1400 µg/L	32/64	SYR4	2012–2019
Combined Radium (-226 And -228)	5.45 pCi/L 109% of the EPA limit, at the 95th percentile of samples — 5 pCi/L worst single sample: 5.6 pCi/L	16/16	SYR4	2012–2018
Lead	0.0083 mg/L 55% of the EPA limit 0.0150 mg/L	13/13	LCR	2024
Lithium	182 µg/L No EPA limit set	8/8	UCMR-5	2025
Nitrite	346 µg/L 35% of the EPA limit 1000 µg/L worst single sample: 360 µg/L	5/23	SYR4	2012–2019
Dibromoacetic Acid	1.028 µg/L No EPA limit set worst single sample: 1.04 µg/L	4/16	SYR4	2012–2019
Monochloroacetic Acid	2.053 µg/L No EPA limit set worst single sample: 2.08 µg/L	4/16	SYR4	2012–2019
Trichloroacetic Acid	5.27 µg/L No EPA limit set	4/15	SYR4	2012–2019
Barium	76.14 µg/L 3.8% of the EPA limit 2000 µg/L worst single sample: 81.7 µg/L	3/3	SYR4	2012–2019
Total Haloacetic Acids (HAA5)	6.182 µg/L 10% of the EPA limit 60 µg/L worst single sample: 6.23 µg/L	2/16	SYR4	2012–2019
Arsenic	1.1 µg/L 11% of the EPA limit 10 µg/L	1/3	SYR4	2012–2019
Bromodichloromethane	0.9900 µg/L No EPA limit set	1/16	SYR4	2012–2019
Chloroform	0.5900 µg/L No EPA limit set	1/16	SYR4	2012–2019
Dibromochloromethane	1.28 µg/L No EPA limit set	1/16	SYR4	2012–2019
Gross Beta Particle Activity	12 pCi/L No EPA limit set	1/1	SYR4	2015
Selenium	1.7 µg/L 3.4% of the EPA limit 50 µg/L	1/3	SYR4	2012–2019
TTHM	2.86 µg/L 3.6% of the EPA limit 80 µg/L	1/16	SYR4	2012–2019

74 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbon TetrachlorideChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebDiquatEthylbenzeneGlyphosateHfpo-DaLassoMercuryMonobromoacetic AcidNetfosaaNfdhaNmefosaaPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: MARION MUNICIPAL WATER DEPT
Phone: 319-743-6310
Email: [email protected]

Frequently asked questions about Marion Municipal Water Dept

Is Marion Municipal Water Dept tap water safe to drink?

EPA monitoring detected 20 contaminants in Marion Municipal Water Dept'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 Marion Municipal Water Dept's water?

EPA monitoring detected Fluoride, Copper, Lead, Nitrate, Combined Radium (-226 And -228), and others. The full list with the level and data source for each is above.

How many people does Marion Municipal Water Dept serve?

Marion Municipal Water Dept reports serving 41,623 people in Iowa, per its EPA record.

Has Marion Municipal Water Dept had any water quality violations?

The EPA has 28 violations on file for Marion Municipal Water Dept, of which 10 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.