Strontium

City of Modesto

Strontium is a metal that accumulates in the bones. Radioactive strontium-90 can cause bone cancer and leukemia, and any form of strontium at high doses can harm bone health.

MORE ABOUT THIS CONTAMINANT

126

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2013	0.619 ppb	115	115	0.0260 ppb - 1.80 ppb
2014	0.216 ppb	11	11	0.0280 ppb - 0.530 ppb
2015	N/A	0	0	N/A
2016	N/A	0	0	N/A
2017	N/A	0	0	N/A
2018	N/A	0	0	N/A
2019	N/A	0	0	N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1,500 ppb

The EWG Health Guideline of 1,500 ppb for strontium was defined by the Environmental Protection Agency as a benchmark for testing under the Unregulated Contaminant Monitoring Rule program. This health guideline protects against harm to bones.

ppb = parts per billion

All test results

Date	Lab ID	Result
2013-05-02	B3E0370-07	0.910 ppb
2013-05-02	B3E0370-03	0.790 ppb
2013-05-02	B3E0370-11	0.740 ppb
2013-05-02	B3E0370-13	0.950 ppb
2013-05-02	B3E0370-09	0.1000 ppb
2013-05-02	B3E0370-17	0.350 ppb
2013-05-02	B3E0370-05	0.410 ppb
2013-05-02	B3E0370-01	0.590 ppb
2013-05-02	B3E0370-15	0.860 ppb
2013-05-06	B3E0671-01	0.380 ppb
2013-05-06	B3E0663-01	0.970 ppb
2013-05-06	B3E0675-01	0.240 ppb
2013-05-06	B3E0669-01	0.710 ppb
2013-05-06	B3E0667-01	0.0280 ppb
2013-05-06	B3E0673-01	0.520 ppb
2013-05-07	B3E0839-01	0.240 ppb
2013-05-07	B3E0842-01	0.870 ppb
2013-05-07	B3E0833-01	0.380 ppb
2013-05-07	B3E0835-01	0.990 ppb
2013-05-07	B3E0837-01	1.30 ppb
2013-05-07	B3E0844-01	1.20 ppb
2013-05-13	B3E1467-01	0.640 ppb
2013-05-13	B3E1460-01	0.400 ppb
2013-05-13	B3E1464-01	0.750 ppb
2013-05-13	B3E1474-01	0.0330 ppb
2013-05-13	B3E1471-01	0.260 ppb
2013-05-14	B3E1627-01	0.990 ppb
2013-05-14	B3E1626-01	0.840 ppb
2013-05-14	B3E1629-01	1.10 ppb
2013-05-14	B3E1633-01	0.500 ppb
2013-05-14	B3E1625-01	0.170 ppb
2013-05-20	B3E2252-01	0.690 ppb
2013-05-20	B3E2243-01	0.180 ppb
2013-05-20	B3E2247-01	1.000 ppb
2013-05-20	B3E2240-01	0.710 ppb
2013-05-20	B3E2236-01	0.200 ppb
2013-05-20	B3E2238-01	0.200 ppb
2013-05-21	B3E2397-01	0.920 ppb
2013-05-21	B3E2389-01	0.0300 ppb
2013-05-21	B3E2392-01	0.310 ppb
2013-05-21	B3E2385-01	1.30 ppb
2013-05-21	B3E2394-01	1.70 ppb
2013-05-22	B3E2386-01	0.0350 ppb
2013-05-28	B3E3171-01	0.520 ppb
2013-05-28	B3E3172-01	0.0310 ppb
2013-05-28	B3E3170-01	0.190 ppb
2013-05-29	B3E3219-01	0.240 ppb
2013-05-29	B3E3221-01	1.30 ppb
2013-05-29	B3E3304-01	0.240 ppb
2013-05-29	B3E3224-01	0.860 ppb
2013-05-30	B3E3364-01	0.820 ppb
2013-07-08	B3G0873-01	0.980 ppb
2013-08-08	A3G2387-01A	0.330 ppb
2013-08-08	A3G2387-17A	0.430 ppb
2013-08-08	A3G2387-13A	0.260 ppb
2013-08-08	A3G2387-09A	0.160 ppb
2013-08-08	A3G2387-05A	0.380 ppb
2013-08-08	A3G2390-01A	0.770 ppb
2013-08-08	A3G2387-25A	0.0260 ppb
2013-08-08	A3G2387-21A	0.220 ppb
2013-08-08	A3G2387-31A	0.120 ppb
2013-08-08	A3G2387-29A	0.0380 ppb
2013-08-08	A3G2387-33A	0.340 ppb
2013-11-07	A3J2250-23A	0.180 ppb
2013-11-07	A3J2250-11A	0.860 ppb
2013-11-07	A3J2250-27A	1.10 ppb
2013-11-07	A3J2250-31A	1.000 ppb
2013-11-07	A3J2250-03A	0.530 ppb
2013-11-07	A3J2250-15A	0.610 ppb
2013-11-07	A3J2250-07A	0.550 ppb
2013-11-07	A3J2250-35A	0.930 ppb
2013-11-08	A3J2280-13A	0.160 ppb
2013-11-08	A3J2280-05A	0.920 ppb
2013-11-08	A3J2280-25A	0.860 ppb
2013-11-08	A3J2280-09A	0.260 ppb
2013-11-08	A3J2280-21A	1.20 ppb
2013-11-08	A3J2280-17A	0.410 ppb
2013-11-08	A3J2280-29A	0.0260 ppb
2013-11-08	A3J2280-01A	0.530 ppb
2013-11-14	A3K0161-25A	0.730 ppb
2013-11-14	A3K0161-13A	0.460 ppb
2013-11-14	A3K0161-01A	0.290 ppb
2013-11-14	A3K0161-17A	0.870 ppb
2013-11-14	A3K0161-09A	0.460 ppb
2013-11-14	A3K0161-05A	1.20 ppb
2013-11-14	A3K0161-29A	0.640 ppb
2013-11-14	A3K0161-21A	0.490 ppb
2013-11-14	A3K0161-33A	1.20 ppb
2013-11-15	A3K0220-21A	1.000 ppb
2013-11-15	A3K0220-17A	0.210 ppb
2013-11-15	A3K0220-09A	1.10 ppb
2013-11-15	A3K0220-05A	1.30 ppb
2013-11-15	A3K0220-25A	0.520 ppb
2013-11-15	A3K0220-33A	0.990 ppb
2013-11-15	A3K0220-01A	0.240 ppb
2013-11-15	A3K0220-13A	0.220 ppb
2013-11-21	A3K0757-19A	0.850 ppb
2013-11-21	A3K0757-15A	1.10 ppb
2013-11-21	A3K0757-03A	0.600 ppb
2013-11-21	A3K0757-07A	0.740 ppb
2013-11-21	A3K0757-11A	0.650 ppb
2013-11-21	A3K0757-01A	0.900 ppb
2013-11-21	A3K0757-13A	0.880 ppb
2013-11-21	A3K0757-23A	1.80 ppb
2013-11-21	A3K0757-27A	1.20 ppb
2013-11-22	A3K1031-01A	0.650 ppb
2013-11-22	A3K0795-23A	0.330 ppb
2013-11-22	A3K0795-05A	0.410 ppb
2013-11-22	A3K0795-27A	1.70 ppb
2013-11-22	A3K1211-01A	1.000 ppb
2013-11-22	A3K0795-13A	0.290 ppb
2013-11-22	A3K0795-17A	0.0680 ppb
2013-11-22	A3K0795-09A	0.210 ppb
2013-11-22	A3K0795-31A	0.870 ppb
2013-11-26	A3K1679-01A	0.200 ppb
2014-02-06	A4A1431-01A	0.230 ppb
2014-02-06	A4A1431-16A	0.380 ppb
2014-02-06	A4A1431-13A	0.310 ppb
2014-02-06	A4A1431-05A	0.530 ppb
2014-02-06	A4A1431-09A	0.170 ppb
2014-02-06	A4A1431-34A	0.230 ppb
2014-02-06	A4A1431-24A	0.0280 ppb
2014-02-06	A4A1431-20A	0.240 ppb
2014-02-06	A4A1431-30A	0.110 ppb
2014-02-06	A4A1431-28A	0.0630 ppb
2014-02-06	A4A1431-32A	0.0840 ppb