Tap WaterIndex

← Indiana

Tap water quality report

Greencastle, IN

EPA monitoring detected 15 contaminants across the 5 water suppliers serving Greencastle. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

5
water suppliers
17,645
people served
15
contaminants found
Indiana rankings Lead in Indiana PFAS in Indiana

What was found in Greencastle's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate
1665 µg/L 17%
of the EPA limit 10000 µg/L
Main supplier: GREENCASTLE DEPARTMENT OF WATER · 12,699 people · 2019
1/5 SYR4
Fluoride
1227.3 µg/L 31%
of the EPA limit 4000 µg/L
Main supplier: GREENCASTLE DEPARTMENT OF WATER · 12,699 people · 2019
1/5 SYR4
Copper
938.55 µg/L 72%
of the EPA limit 1300 µg/L
Main supplier: GREENCASTLE DEPARTMENT OF WATER · 12,699 people · 2017
5/5 SYR4
Barium
82.45 µg/L 4.1%
of the EPA limit 2000 µg/L
Main supplier: GREENCASTLE DEPARTMENT OF WATER · 12,699 people · 2019
1/5 SYR4
TTHM
56.28 µg/L 70%
of the EPA limit 80 µg/L
Main supplier: GREENCASTLE DEPARTMENT OF WATER · 12,699 people · 2019
5/5 SYR4
Total Haloacetic Acids (HAA5)
21.66 µg/L 36%
of the EPA limit 60 µg/L
Main supplier: GREENCASTLE DEPARTMENT OF WATER · 12,699 people · 2019
Highest in the city: 29.97 µg/L — TOWN OF FILLMORE UTILITIES · 510 people · 2019
5/5 SYR4
Lead
1.5 µg/L 10%
of the EPA limit 15 µg/L
Main supplier: GREENCASTLE DEPARTMENT OF WATER · 12,699 people · 2017
Highest in the city: 8.65 µg/L — TOWN OF FILLMORE UTILITIES · 510 people · 2018
4/5 SYR4
Chromium
3 µg/L 3%
of the EPA limit 100 µg/L
Main supplier: GREENCASTLE DEPARTMENT OF WATER · 12,699 people · 2019
1/5 SYR4
Selenium
2.8 µg/L 5.6%
of the EPA limit 50 µg/L
Main supplier: GREENCASTLE DEPARTMENT OF WATER · 12,699 people · 2019
1/5 SYR4
Arsenic
1.65 µg/L 16%
of the EPA limit 10 µg/L
Main supplier: GREENCASTLE DEPARTMENT OF WATER · 12,699 people · 2019
1/5 SYR4
Chloroform
0.7000 µg/L
No EPA limit set
Main supplier: GREENCASTLE DEPARTMENT OF WATER · 12,699 people · 2015
1/5 SYR4
Bromodichloromethane
0.6950 µg/L
No EPA limit set
Main supplier: GREENCASTLE DEPARTMENT OF WATER · 12,699 people · 2015
1/5 SYR4
Gross Alpha, Excl. Radon And U
0.6450 pCi/L 4.3%
of the EPA limit 15 pCi/L
Main supplier: GREENCASTLE DEPARTMENT OF WATER · 12,699 people · 2016
1/5 SYR4
Cadmium
0.5000 µg/L 10%
of the EPA limit 5 µg/L
Main supplier: GREENCASTLE DEPARTMENT OF WATER · 12,699 people · 2019
1/5 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: GREENCASTLE DEPARTMENT OF WATER · 12,699 people · 2023
Highest in the city: 0.0070 mg/L — SOUTH 43 WATER ASSOCIATION, INC. · 1,431 people · 2023
5/5 LCR
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 the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Greencastle

SupplierPopulation served
GREENCASTLE DEPARTMENT OF WATER 12,699
PUTNAMVILLE CORRECTIONAL FACILITY 2,505
SOUTH 43 WATER ASSOCIATION, INC. 1,431
TOWN OF FILLMORE UTILITIES 510
BIG WALNUT WATER COMPANY 500

Frequently asked questions about Greencastle tap water

Is Greencastle tap water safe to drink?

EPA testing detected 15 contaminants in the water serving Greencastle. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Greencastle?

5 public water suppliers report drinking-water monitoring for Greencastle, Indiana to the EPA. Each is listed above with its population served.

What contaminants are in Greencastle's water?

The contaminants EPA monitoring detected in Greencastle include Nitrate, Fluoride, Copper, Barium, TTHM. The full list, with the level at the main supplier and the data source, is in the table above.

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.