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Tap water quality report

Oswego, City of

EPA monitoring tested this supplier for 63 contaminants and detected 24. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

63
contaminants tested
24
detected
1,680
people served
167
health-based violations
Kansas rankingsLead in KansasPFAS in Kansas
Water source
Surface water
Ownership
Local government
Counties served
Labette

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.

167
health-based violations
267
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2021-07-01 → 2021-07-31
MCL Health-based Resolved 2021-07-01 → 2021-07-31
MCL Health-based Resolved 2021-07-01 → 2021-07-31
MCL Health-based Resolved 2021-07-01 → 2021-07-31
MCL Health-based Resolved 2018-03-01 → 2018-03-31
MCL Health-based Resolved 2018-03-01 → 2018-03-31
MCL Health-based Resolved 2018-03-01 → 2018-03-31
MCL Health-based Resolved 2018-03-01 → 2018-03-31
MCL Health-based Resolved 2014-07-01 → 2014-09-30
MCL Health-based Resolved 2014-07-01 → 2014-09-30

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 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
Chlorite
3300 µg/L 330%
of the EPA limit, in the worst sample — 1000 µg/L
 247/288 SYR4 2012–2019
Copper
620 µg/L 48%
of the EPA limit 1300 µg/L
 118/118 SYR4 2012–2019
Lead
24 µg/L 160%
of the EPA limit, in the worst sample — 15 µg/L
 45/118 SYR4 2012–2019
Bromodichloromethane
38 µg/L
No EPA limit set
 32/32 SYR4 2012–2019
Chloroform
89 µg/L
No EPA limit set
 32/32 SYR4 2012–2019
Dibromochloromethane
15 µg/L
No EPA limit set
 32/32 SYR4 2012–2019
Dichloroacetic Acid
90 µg/L
No EPA limit set
 32/32 SYR4 2012–2019
TTHM
130 µg/L 163%
of the EPA limit, in the worst sample — 80 µg/L
 32/32 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
210 µg/L 350%
of the EPA limit, in the worst sample — 60 µg/L
 32/32 SYR4 2012–2019
Trichloroacetic Acid
110 µg/L
No EPA limit set
 32/32 SYR4 2012–2019
Monochloroacetic Acid
10 µg/L
No EPA limit set
 31/32 SYR4 2012–2019
Dibromoacetic Acid
3.9 µg/L
No EPA limit set
 26/32 SYR4 2012–2019
Nitrate
2200 µg/L 22%
of the EPA limit 10000 µg/L
 26/30 SYR4 2012–2019
Monobromoacetic Acid
1.8 µg/L
No EPA limit set
 21/32 SYR4 2012–2019
Atrazine
10 µg/L 333%
of the EPA limit, in the worst sample — 3 µg/L
 16/26 SYR4 2012–2019
Lead
0.0032 mg/L 21%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2024
Bromoform
2.3 µg/L
No EPA limit set
 11/32 SYR4 2012–2019
Barium
110 µg/L 5.5%
of the EPA limit 2000 µg/L
 8/8 SYR4 2012–2019
Chromium
2.5 µg/L 2.5%
of the EPA limit 100 µg/L
 4/8 SYR4 2012–2019
Fluoride
190 µg/L 4.8%
of the EPA limit 4000 µg/L
 2/8 SYR4 2012–2019
Selenium
1.3 µg/L 2.6%
of the EPA limit 50 µg/L
 2/8 SYR4 2012–2019
Arsenic
1.1 µg/L 11%
of the EPA limit 10 µg/L
 1/8 SYR4 2012–2019
Ethylbenzene
0.7600 µg/L 0.1%
of the EPA limit 700 µg/L
 1/3 SYR4 2013–2017
Xylenes, Total
3.8 µg/L 0%
of the EPA limit 10000 µg/L
 1/3 SYR4 2013–2017
39 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-DichloropropaneAntimony, TotalBhc-GammaBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbofuranCarbon TetrachlorideChlordaneCombined Radium (-226 And -228)DichloromethaneEthylene DibromideEndrinHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
JURGENSEN, CALVIN
Phone
620-795-4433
Email
cjurgensen@oswegoks.com

Frequently asked questions about Oswego, City of

Is Oswego, City of tap water safe to drink?

EPA monitoring detected 24 contaminants in Oswego, City of'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 Oswego, City of's water?

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

How many people does Oswego, City of serve?

Oswego, City of reports serving 1,680 people in Kansas, per its EPA record.

Has Oswego, City of had any water quality violations?

The EPA has 267 violations on file for Oswego, City of, of which 167 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.