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Tap water quality report

Wall Lake Water Supply

EPA monitoring tested this supplier for 61 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

61
contaminants tested
17
detected
780
people served
8
health-based violations
Iowa rankingsLead in IowaPFAS in Iowa
Water source
Ground water
Ownership
Local government
Counties served
Sac

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.

8
health-based violations
22
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2015-07-01 → 2016-06-30
MCL Health-based Resolved 2015-07-01 → 2016-06-30
MCL Health-based Resolved 2015-07-01 → 2016-06-30
MCL Health-based Resolved 2015-07-01 → 2016-06-30
MCL Health-based Resolved 2015-07-01 → 2016-06-30
MCL Health-based Archived 1985-07-01 → 1985-08-31
MCL Health-based Archived 1979-08-11 → 1980-08-10
MCL Health-based Archived 1979-08-10 → 1980-03-09
MR Monitoring Resolved 1996-04-01 → 1996-06-30
MR Monitoring Resolved 1996-04-01 → 1996-06-30

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Copper
560 µg/L 43%
of the EPA limit 1300 µg/L
 30/30 SYR4 2012–2018
Nitrate
13000 µg/L 130%
of the EPA limit, in the worst sample — 10000 µg/L
 16/26 SYR4 2012–2019
Combined Uranium
32 µg/L 107%
of the EPA limit, in the worst sample — 30 µg/L
 13/13 SYR4 2013–2016
Lead
0.0023 mg/L 15%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2024
Lead
6 µg/L 40%
of the EPA limit 15 µg/L
 10/30 SYR4 2012–2018
Bromodichloromethane
12 µg/L
No EPA limit set
 7/7 SYR4 2013–2019
Bromoform
1.3 µg/L
No EPA limit set
 7/7 SYR4 2013–2019
Chloroform
15 µg/L
No EPA limit set
 7/7 SYR4 2013–2019
Dibromoacetic Acid
2 µg/L
No EPA limit set
 7/7 SYR4 2013–2019
Dibromochloromethane
7.9 µg/L
No EPA limit set
 7/7 SYR4 2013–2019
Dichloroacetic Acid
7 µg/L
No EPA limit set
 7/7 SYR4 2013–2019
TTHM
36 µg/L 45%
of the EPA limit 80 µg/L
 7/7 SYR4 2013–2019
Trichloroacetic Acid
4 µg/L
No EPA limit set
 6/7 SYR4 2013–2019
Total Haloacetic Acids (HAA5)
13 µg/L 22%
of the EPA limit 60 µg/L
 3/7 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
10.1 pCi/L 67%
of the EPA limit 15 pCi/L
 2/3 SYR4 2013–2015
Barium
140 µg/L 7%
of the EPA limit 2000 µg/L
 1/1 SYR4 2012
Fluoride
600 µg/L 15%
of the EPA limit 4000 µg/L
 1/1 SYR4 2012
44 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, TotalArsenicAtrazineBenzeneBenzo(A)PyreneChlorobenzeneCadmiumCarbon TetrachlorideChromiumCombined Radium (-226 And -228)DichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylbenzeneLassoMercuryMonobromoacetic AcidMonochloroacetic AcidNitritePentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
WALL LAKE WATER SUPPLY
Phone
712-664-2216
Email
citywl@netins.net

Frequently asked questions about Wall Lake Water Supply

Is Wall Lake Water Supply tap water safe to drink?

EPA monitoring detected 17 contaminants in Wall Lake 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 Wall Lake Water Supply's water?

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

How many people does Wall Lake Water Supply serve?

Wall Lake Water Supply reports serving 780 people in Iowa, per its EPA record.

Has Wall Lake Water Supply had any water quality violations?

The EPA has 22 violations on file for Wall Lake Water Supply, of which 8 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.