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Tap water quality report

Altoona Waterworks

EPA monitoring tested this supplier for 76 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

76
contaminants tested
20
detected
9,627
people served
47
health-based violations
Wisconsin rankingsLead in WisconsinPFAS in Wisconsin
Water source
Ground water
Ownership
Local government
Counties served
Eau Claire

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.

47
health-based violations
285
violations on file
1
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2024-10-17
MCL Health-based Resolved 2008-06-01 → 2008-06-30
MCL Health-based Resolved 2008-06-01 → 2008-06-30
MCL Health-based Resolved 2008-06-01 → 2008-06-30
MCL Health-based Resolved 2008-06-01 → 2008-06-30
MCL Health-based Resolved 2007-10-01 → 2007-10-31
MCL Health-based Resolved 2007-10-01 → 2007-10-31
MCL Health-based Resolved 2007-10-01 → 2007-10-31
MCL Health-based Resolved 2007-10-01 → 2007-10-31
MCL Health-based Resolved 2006-09-01 → 2006-09-30

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
3400 µg/L 34%
of the EPA limit 10000 µg/L
worst single sample: 3900 µg/L
72/72 SYR4 2012–2019
Copper
763 µg/L 59%
of the EPA limit 1300 µg/L
worst single sample: 1500 µg/L
40/40 SYR4 2014–2017
Lead
8.86 µg/L 59%
of the EPA limit 15 µg/L
worst single sample: 39 µg/L
39/40 SYR4 2014–2017
Lead
0.00099 mg/L 6.6%
of the EPA limit 0.0150 mg/L
 17/17 LCR 2025
Barium
29.9 µg/L 1.5%
of the EPA limit 2000 µg/L
worst single sample: 31 µg/L
12/12 SYR4 2014–2017
Nitrate-Nitrite
3700 µg/L 37%
of the EPA limit 10000 µg/L
 12/12 SYR4 2014–2017
Combined Radium (-226 And -228)
4.2065 pCi/L 84%
of the EPA limit 5 pCi/L
worst single sample: 4.42 pCi/L
8/8 SYR4 2014–2017
TTHM
11.61 µg/L 15%
of the EPA limit 80 µg/L
worst single sample: 12.9 µg/L
7/8 SYR4 2012–2019
Bromoform
1.48 µg/L
No EPA limit set
worst single sample: 1.5 µg/L
5/10 SYR4 2012–2019
Dichloromethane
0.8860 µg/L 18%
of the EPA limit 5 µg/L
worst single sample: 0.8900 µg/L
5/43 SYR4 2012–2019
Dibromochloromethane
3.64 µg/L
No EPA limit set
worst single sample: 3.8 µg/L
5/9 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
2.356 µg/L 3.9%
of the EPA limit 60 µg/L
worst single sample: 2.51 µg/L
5/8 SYR4 2012–2019
Bromodichloromethane
3.69 µg/L
No EPA limit set
worst single sample: 3.9 µg/L
4/8 SYR4 2012–2019
Chloroform
3.575 µg/L
No EPA limit set
worst single sample: 3.8 µg/L
4/10 SYR4 2012–2019
Dibromoacetic Acid
0.9135 µg/L
No EPA limit set
worst single sample: 0.9300 µg/L
4/8 SYR4 2012–2019
Dichloroacetic Acid
0.8395 µg/L
No EPA limit set
worst single sample: 0.8800 µg/L
4/8 SYR4 2012–2019
Gross Alpha, Excl. Radon And U
2.768 pCi/L 18%
of the EPA limit 15 pCi/L
worst single sample: 2.86 pCi/L
3/3 SYR4 2014–2017
Chromium
1.295 µg/L 1.3%
of the EPA limit 100 µg/L
worst single sample: 1.3 µg/L
2/12 SYR4 2014–2017
Monobromoacetic Acid
0.3500 µg/L
No EPA limit set
 1/8 SYR4 2012–2019
Trichloroacetic Acid
0.3500 µg/L
No EPA limit set
 1/8 SYR4 2012–2019
56 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-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneDalaponDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneFluorideGlyphosateHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonochloroacetic AcidNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Frequently asked questions about Altoona Waterworks

Is Altoona Waterworks tap water safe to drink?

EPA monitoring detected 20 contaminants in Altoona Waterworks'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 Altoona Waterworks's water?

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

How many people does Altoona Waterworks serve?

Altoona Waterworks reports serving 9,627 people in Wisconsin, per its EPA record.

Has Altoona Waterworks had any water quality violations?

The EPA has 285 violations on file for Altoona Waterworks, of which 47 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.