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Granger Muni Water Supply

EPA monitoring tested this supplier for 61 contaminants and detected 16. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

61
contaminants tested
16
detected
1,654
people served
5
health-based violations
Iowa rankingsLead in IowaPFAS in Iowa
Water source
Ground water
Ownership
Local government
Counties served
Dallas

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.

5
health-based violations
24
violations on file
3
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2014-01-01 → 2014-03-31
MCL Health-based Resolved 2014-01-01 → 2014-03-31
MCL Health-based Resolved 2014-01-01 → 2014-03-31
MCL Health-based Resolved 2014-01-01 → 2014-03-31
MCL Health-based Resolved 2014-01-01 → 2014-03-31
MR Monitoring Resolved 2024-01-01 → 2024-03-31
MR Monitoring Resolved 2024-01-01 → 2024-03-31
MR Monitoring Resolved 2024-01-01 → 2024-03-31
MR Monitoring Resolved 2024-01-01 → 2024-03-31
Other Monitoring Unaddressed 2021-04-26

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
Copper
2280 µg/L 175%
of the EPA limit, at the 95th percentile of samples — 1300 µg/L
worst single sample: 3490 µg/L
71/71 SYR4 2012–2019
Lead
9.5 µg/L 63%
of the EPA limit 15 µg/L
worst single sample: 36.4 µg/L
46/71 SYR4 2012–2019
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 22/22 LCR 2024
Chloroform
43.72 µg/L
No EPA limit set
worst single sample: 44.2 µg/L
7/7 SYR4 2013–2019
Dichloroacetic Acid
15.34 µg/L
No EPA limit set
worst single sample: 15.4 µg/L
7/7 SYR4 2013–2019
Monochloroacetic Acid
21.19 µg/L
No EPA limit set
worst single sample: 21.7 µg/L
7/7 SYR4 2013–2019
Nitrite
1961 µg/L 196%
of the EPA limit, at the 95th percentile of samples — 1000 µg/L
worst single sample: 2450 µg/L
7/89 SYR4 2013–2019
TTHM
48.65 µg/L 61%
of the EPA limit 80 µg/L
worst single sample: 49.1 µg/L
7/7 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
45 µg/L 75%
of the EPA limit 60 µg/L
worst single sample: 45.9 µg/L
7/7 SYR4 2013–2019
Trichloroacetic Acid
19.69 µg/L
No EPA limit set
worst single sample: 22.6 µg/L
7/7 SYR4 2013–2019
Nitrate
800 µg/L 8%
of the EPA limit 10000 µg/L
 6/18 SYR4 2012–2019
Bromodichloromethane
4.736 µg/L
No EPA limit set
worst single sample: 4.85 µg/L
5/7 SYR4 2013–2019
Dibromochloromethane
2.224 µg/L
No EPA limit set
worst single sample: 2.3 µg/L
2/7 SYR4 2013–2019
Arsenic
8.5 µg/L 85%
of the EPA limit 10 µg/L
 1/3 SYR4 2013–2019
Barium
623 µg/L 31%
of the EPA limit 2000 µg/L
 1/1 SYR4 2016
Fluoride
400 µg/L 10%
of the EPA limit 4000 µg/L
 1/1 SYR4 2016
45 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAtrazineBenzeneBenzo(A)PyreneBromoformChlorobenzeneCadmiumCarbon TetrachlorideChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebDiquatEthylbenzeneGlyphosateLassoMercuryMonobromoacetic AcidPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
GRANGER MUNI WATER SUPPLY
Phone
515-971-4629
Email
[email protected]

Frequently asked questions about Granger Muni Water Supply

Is Granger Muni Water Supply tap water safe to drink?

EPA monitoring detected 16 contaminants in Granger Muni Water Supply'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 Granger Muni Water Supply's water?

EPA monitoring detected Copper, Lead, Lead, Chloroform, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Granger Muni Water Supply serve?

Granger Muni Water Supply reports serving 1,654 people in Iowa, per its EPA record.

Has Granger Muni Water Supply had any water quality violations?

The EPA has 24 violations on file for Granger Muni Water Supply, of which 5 are health-based (a contaminant limit or required treatment was breached) and 3 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.