Nitrate in Drinking Water

What you need to know about nitrate in your tap water.

EPA Limit (MCL)

10000 ppb

EPA Goal (MCLG)

10000 ppb

Category

Inorganic

Health Effects

Blue baby syndrome in infants under six months

Common Sources

Fertilizer runoff, septic systems, sewage, natural deposits

How to Remove Nitrate from Water

Recommended filtration methods: Reverse osmosis, ion exchange

24,098

Total Violations

4,804

Systems Affected

Nitrate Violations by State

StateViolationsSystems
Texas5,550472
California3,566510
Pennsylvania1,883490
Arizona1,267139
Florida1,128383
New York965340
Kansas90968
Alaska849187
Idaho849154
Utah718165
Oregon673190
Colorado559156
Iowa549145
Illinois475103
North Carolina460126
New Jersey368112
Mississippi35159
Oklahoma33958
Vermont336131
Maryland322101

Water Systems with Most Nitrate Violations