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Tap water quality report

Ryan Water Supply

EPA monitoring tested this supplier for 61 contaminants and detected 11. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

61
contaminants tested
11
detected
350
people served
5
health-based violations
Iowa rankingsLead in IowaPFAS in Iowa
Water source
Ground water
Ownership
Local government
Counties served
Delaware

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
65
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2018-01-01 → 2018-12-31
MCL Health-based Resolved 2018-01-01 → 2018-12-31
MCL Health-based Resolved 2018-01-01 → 2018-12-31
MCL Health-based Resolved 2018-01-01 → 2018-12-31
MCL Health-based Resolved 2018-01-01 → 2018-12-31
Other Monitoring Resolved 2025-07-01
Other Monitoring Resolved 2025-07-01
MR Monitoring Resolved 2019-11-01 → 2019-11-30
MR Monitoring Resolved 2019-11-01 → 2019-11-30
MR Monitoring Resolved 2019-11-01 → 2019-11-30

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
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 13/13 LCR 2023
Copper
116.5 µg/L 9%
of the EPA limit 1300 µg/L
worst single sample: 130 µg/L
10/10 SYR4 2014–2017
Fluoride
397.5 µg/L 9.9%
of the EPA limit 4000 µg/L
worst single sample: 400 µg/L
6/6 SYR4 2012–2013
Di(2-ethylhexyl) Phthalate
1.72 µg/L 29%
of the EPA limit 6 µg/L
worst single sample: 1.9 µg/L
5/19 SYR4 2012–2018
Dichloroacetic Acid
1.9 µg/L
No EPA limit set
worst single sample: 2 µg/L
3/5 SYR4 2012–2019
Arsenic
2 µg/L 20%
of the EPA limit 10 µg/L
 2/2 SYR4 2013
Lead
7.65 µg/L 51%
of the EPA limit 15 µg/L
worst single sample: 8 µg/L
2/10 SYR4 2014–2017
Nitrite
2004.5 µg/L 200%
of the EPA limit, at the 95th percentile of samples — 1000 µg/L
worst single sample: 2100 µg/L
2/43 SYR4 2016–2019
Xylenes, Total
0.8850 µg/L 0%
of the EPA limit 10000 µg/L
worst single sample: 0.9000 µg/L
2/14 SYR4 2012–2019
Chloroform
1.3 µg/L
No EPA limit set
 1/5 SYR4 2012–2019
Combined Radium (-226 And -228)
2.6 pCi/L 52%
of the EPA limit 5 pCi/L
 1/4 SYR4 2012–2018
50 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, TotalAtrazineBariumBenzeneBenzo(A)PyreneBromodichloromethaneBromoformChlorobenzeneCadmiumCarbon TetrachlorideChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDibromoacetic AcidDibromochloromethaneDinosebDiquatEthylbenzeneGlyphosateLassoMercuryMonobromoacetic AcidMonochloroacetic AcidNitratePentachlorophenolPicloramSeleniumSimazineStyreneTTHMTetrachloroethyleneThallium, TotalTolueneTotal Haloacetic Acids (HAA5)Trichloroacetic AcidTrichloroethyleneVinyl Chloridecis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
RYAN WATER SUPPLY
Phone
563-932-2051
Email
[email protected]

Frequently asked questions about Ryan Water Supply

Is Ryan Water Supply tap water safe to drink?

EPA monitoring detected 11 contaminants in Ryan 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 Ryan Water Supply's water?

EPA monitoring detected Lead, Copper, Fluoride, Di(2-ethylhexyl) Phthalate, Dichloroacetic Acid, and others. The full list with the level and data source for each is above.

How many people does Ryan Water Supply serve?

Ryan Water Supply reports serving 350 people in Iowa, per its EPA record.

Has Ryan Water Supply had any water quality violations?

The EPA has 65 violations on file for Ryan Water Supply, of which 5 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.