Nitrite

Castle City Mobile Home Park

NOTE: Castle City Mobile Home Park purchases water from Placer County Water Agency - Foothill which is required to test for nitrite. Sample information shown below was taken by Placer County Water Agency - Foothill.

Nitrite, closely related to the fertilizer chemical nitrate, comes from urban runoff and from fertilizer applied to agricultural lands to pollute drinking water. Nitrite is significantly more toxic than nitrate. Excessive nitrite in water can cause oxygen deprivation in infants and increase the risk of cancer.

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Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Range of results
2014	ND	2	ND
2015	ND	2	ND
2016	ND	3	ND
2017	ND	3	ND
2018	ND	1	ND
2019	ND	1	ND

ppm = parts per million

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 1 ppm

The legal limit for nitrite, established in 1991, was based on the rate of conversion of ingested nitrate into nitrite in adults. This limit may not fully protect against the risk of cancer due to nitrite exposure.

ppm = parts per million

All test results

Date	Lab ID	Result
2014-08-20	3334-002-1010	ND
2014-08-20	3334-007-1200	ND
2015-08-11	3334-002-1000	ND
2015-08-11	3334-007-1305	ND
2016-08-03	2113-014-1045	ND
2016-08-17	2113-002-1215	ND
2016-08-17	2113-007-0945	ND
2017-08-08	2113-002-1050	ND
2017-08-08	2113-007-1050	ND
2017-08-22	2113-014-0000	ND
2018-08-14	7473-002-1120	ND
2018-08-14	7473-007-1310	ND
2018-08-22	7473-014-0930	ND
2019-08-27	7473-002-1135	ND
2019-09-09	7473-007-1330	ND
2019-09-12	7473-014-1150	ND