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Lafayette Water Works

EPA monitoring tested this supplier for 106 contaminants and detected 18. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

106
contaminants tested
18
detected
70,835
people served
2
health-based violations
Indiana rankingsLead in IndianaPFAS in Indiana
Water source
Ground water
Ownership
Local government
Counties served
Tippecanoe

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.

2
health-based violations
42
violations on file
0
still open
ViolationTypeStatusPeriod
TT Health-based Resolved 2008-07-01 → 2008-12-31
TT Health-based Resolved 2008-07-01 → 2008-12-31
RPT Monitoring Resolved 2026-01-01
RPT Monitoring Resolved 2026-01-01
RPT Monitoring Resolved 2026-01-01
MR Monitoring Resolved 2025-07-13
MON Monitoring Resolved 2025-07-01 → 2025-07-31
MON Monitoring Resolved 2025-07-01 → 2025-07-31
MON Monitoring Resolved 2025-07-01 → 2025-07-31
RPT Monitoring Resolved 2021-05-01

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
TTHM
4.78 µg/L 6%
of the EPA limit 80 µg/L
worst single sample: 16 µg/L
85/115 SYR4 2012–2019
Copper
795.5 µg/L 61%
of the EPA limit 1300 µg/L
worst single sample: 2020 µg/L
58/60 SYR4 2016–2019
Total Haloacetic Acids (HAA5)
5.46 µg/L 9.1%
of the EPA limit 60 µg/L
worst single sample: 6 µg/L
55/115 SYR4 2012–2019
Nitrate
1719.5 µg/L 17%
of the EPA limit 10000 µg/L
worst single sample: 1830 µg/L
38/40 SYR4 2012–2019
Lead
0.00045 mg/L 3%
of the EPA limit 0.0150 mg/L
 23/23 LCR 2028
Lead
5.885 µg/L 39%
of the EPA limit 15 µg/L
worst single sample: 8 µg/L
10/60 SYR4 2016–2019
1,1,1-Trichloroethane
0.7800 µg/L 0.4%
of the EPA limit 200 µg/L
worst single sample: 0.8000 µg/L
5/16 SYR4 2012–2019
Barium
216.55 µg/L 11%
of the EPA limit 2000 µg/L
worst single sample: 223 µg/L
4/4 SYR4 2014–2017
Combined Uranium
1.6886 µg/L 5.6%
of the EPA limit 30 µg/L
worst single sample: 1.6946 µg/L
4/4 SYR4 2012–2016
Fluoride
677.8 µg/L 17%
of the EPA limit 4000 µg/L
worst single sample: 700 µg/L
4/4 SYR4 2014–2017
Nitrate-Nitrite
1640 µg/L 16%
of the EPA limit 10000 µg/L
worst single sample: 1700 µg/L
4/4 SYR4 2013–2014
Lithium
12.8 µg/L
No EPA limit set
 4/4 UCMR-5 2023
Gross Beta Particle Activity
5.171 pCi/L
No EPA limit set
worst single sample: 5.19 pCi/L
3/4 SYR4 2012–2016
Trichloroethylene
0.7710 µg/L 15%
of the EPA limit 5 µg/L
worst single sample: 0.8000 µg/L
3/16 SYR4 2012–2019
Chromium
1.58 µg/L 1.6%
of the EPA limit 100 µg/L
worst single sample: 1.6 µg/L
2/4 SYR4 2014–2017
Tetrachloroethylene
0.6000 µg/L 12%
of the EPA limit 5 µg/L
 2/16 SYR4 2012–2019
Arsenic
1 µg/L 10%
of the EPA limit 10 µg/L
 1/4 SYR4 2014–2017
Bromodichloromethane
0.5000 µg/L
No EPA limit set
 1/8 SYR4 2012–2015
88 contaminants tested, none detected
1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalBromoformChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChloroformDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromochloromethaneDinosebDiquatEthylene DibromideEndothallEndrinEthylbenzeneGlyphosateGross Alpha, Excl. Radon And UHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
MOORE, STEVE D.
Phone
765-807-1700
Email
[email protected]

Frequently asked questions about Lafayette Water Works

Is Lafayette Water Works tap water safe to drink?

EPA monitoring detected 18 contaminants in Lafayette Water Works'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 Lafayette Water Works's water?

EPA monitoring detected TTHM, Copper, Total Haloacetic Acids (HAA5), Nitrate, Lead, and others. The full list with the level and data source for each is above.

How many people does Lafayette Water Works serve?

Lafayette Water Works reports serving 70,835 people in Indiana, per its EPA record.

Has Lafayette Water Works had any water quality violations?

The EPA has 42 violations on file for Lafayette Water Works, of which 2 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.