Is Granite Falls, NC Tap Water Safe? Quality & Contaminants

What was found in Granite Falls'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.

Contaminant	Level vs EPA limit	Suppliers	Source
Fluoride	752.6 µg/L 19% of the EPA limit 4000 µg/L Main supplier: LENOIR, CITY OF · 25,573 people · 2019	2/4	SYR4
Copper	240.25 µg/L 18% of the EPA limit 1300 µg/L Main supplier: LENOIR, CITY OF · 25,573 people · 2019 Highest in the city: 274.1499999999999 µg/L — GRANITE FALLS, TOWN OF · 7,318 people · 2017	4/4	SYR4
TTHM	57.39999999999998 µg/L 72% of the EPA limit 80 µg/L Main supplier: LENOIR, CITY OF · 25,573 people · 2019 Highest in the city: 100.36999999999999 µg/L — GRANITE FALLS, TOWN OF · 7,318 people · 2019	4/4	SYR4
Chloroform	50.11 µg/L No EPA limit set Main supplier: LENOIR, CITY OF · 25,573 people · 2019 Highest in the city: 87.42999999999998 µg/L — GRANITE FALLS, TOWN OF · 7,318 people · 2019	4/4	SYR4
Total Haloacetic Acids (HAA5)	41.69999999999999 µg/L 69% of the EPA limit 60 µg/L Main supplier: LENOIR, CITY OF · 25,573 people · 2019 Highest in the city: 46.24999999999998 µg/L — BATON WATER CORPORATION · 7,874 people · 2019	4/4	SYR4
Trichloroacetic Acid	23.82 µg/L No EPA limit set Main supplier: LENOIR, CITY OF · 25,573 people · 2019 Highest in the city: 25.045 µg/L — GRANITE FALLS, TOWN OF · 7,318 people · 2019	4/4	SYR4
Monobromoacetic Acid	25 µg/L No EPA limit set Highest in the city: BATON WATER CORPORATION · 7,874 people · 2019	1/4	SYR4
Dichloroacetic Acid	19.209999999999987 µg/L No EPA limit set Main supplier: LENOIR, CITY OF · 25,573 people · 2019 Highest in the city: 24.685000000000002 µg/L — BATON WATER CORPORATION · 7,874 people · 2019	4/4	SYR4
Dibromoacetic Acid	23.249999999999993 µg/L No EPA limit set Main supplier: LENOIR, CITY OF · 25,573 people · 2019	4/4	SYR4
Lead	5.9 µg/L 39% of the EPA limit 15 µg/L Main supplier: LENOIR, CITY OF · 25,573 people · 2019 Highest in the city: 14.45 µg/L — GRANITE FALLS, TOWN OF · 7,318 people · 2017	4/4	SYR4
Monochloroacetic Acid	13.45 µg/L No EPA limit set Main supplier: LENOIR, CITY OF · 25,573 people · 2019	1/4	SYR4
Bromodichloromethane	8.119999999999997 µg/L No EPA limit set Main supplier: LENOIR, CITY OF · 25,573 people · 2019 Highest in the city: 11.12 µg/L — SAWMILLS, TOWN OF · 5,524 people · 2019	4/4	SYR4
Dibromochloromethane	2 µg/L No EPA limit set Main supplier: LENOIR, CITY OF · 25,573 people · 2019 Highest in the city: 3.399999999999995 µg/L — GRANITE FALLS, TOWN OF · 7,318 people · 2019	4/4	SYR4
Combined Radium (-226 And -228)	0.9000 pCi/L 18% of the EPA limit 5 pCi/L Main supplier: LENOIR, CITY OF · 25,573 people · 2012	1/4	SYR4
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: LENOIR, CITY OF · 25,573 people · 2025	4/4	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 Granite Falls

Supplier	Population served
LENOIR, CITY OF	25,573
BATON WATER CORPORATION	7,874
GRANITE FALLS, TOWN OF	7,318
SAWMILLS, TOWN OF	5,524

Frequently asked questions about Granite Falls tap water

Is Granite Falls tap water safe to drink?

EPA testing detected 15 contaminants in the water serving Granite Falls. 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 Granite Falls?

4 public water suppliers report drinking-water monitoring for Granite Falls, North Carolina to the EPA. Each is listed above with its population served.

What contaminants are in Granite Falls's water?

The contaminants EPA monitoring detected in Granite Falls include Fluoride, Copper, TTHM, Chloroform, Total Haloacetic Acids (HAA5). 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.