Strontium

City of Houston

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

199

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	0.359 ppb	100	100	0.0960 ppb - 0.640 ppb
2014	0.364 ppb	99	99	0.0690 ppb - 0.650 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
2013-07-09	1307298-001A	0.360 ppb
2013-07-09	1307338-001A	0.400 ppb
2013-07-09	1307286-001A	0.540 ppb
2013-07-09	1307282-001A	0.240 ppb
2013-07-09	1307283-001A	0.360 ppb
2013-07-09	1307329-001A	0.460 ppb
2013-07-09	1307285-001A	0.1000 ppb
2013-07-09	1307294-001A	0.500 ppb
2013-07-09	1307290-001A	0.310 ppb
2013-07-09	1307292-001A	0.300 ppb
2013-07-09	1307291-001A	0.260 ppb
2013-07-09	1307293-001A	0.160 ppb
2013-07-09	1307339-001A	0.330 ppb
2013-07-09	1307295-001A	0.530 ppb
2013-07-09	1307426-001A	0.310 ppb
2013-07-09	1307296-001A	0.1000 ppb
2013-07-09	1307300-001A	0.110 ppb
2013-07-09	1307425-001A	0.320 ppb
2013-07-09	1307333-001A	0.490 ppb
2013-07-09	1307284-001A	0.590 ppb
2013-07-10	1307327-001A	0.550 ppb
2013-07-10	1307334-001A	0.380 ppb
2013-07-10	1307328-001A	0.300 ppb
2013-07-10	1307335-001A	0.290 ppb
2013-07-10	1307330-001A	0.330 ppb
2013-07-10	1307337-001A	0.330 ppb
2013-07-10	1307310-001A	0.490 ppb
2013-07-10	1307331-001A	0.640 ppb
2013-07-10	1307340-001A	0.320 ppb
2013-07-10	1307332-001A	0.460 ppb
2013-07-10	1307311-001A	0.320 ppb
2013-07-10	1307341-001A	0.270 ppb
2013-07-11	1307336-001A	0.110 ppb
2013-07-11	1307304-001A	0.280 ppb
2013-07-16	1307541-001A	0.630 ppb
2013-07-16	1307534-001A	0.550 ppb
2013-07-16	1307536-001A	0.410 ppb
2013-07-16	1307553-001A	0.330 ppb
2013-07-16	1307537-001A	0.470 ppb
2013-07-16	1307535-001A	0.220 ppb
2013-07-16	1307549-001A	0.440 ppb
2013-07-16	1307555-001A	0.580 ppb
2013-07-16	1307542-001A	0.610 ppb
2013-07-16	1307550-001A	0.540 ppb
2013-07-16	1307551-001A	0.330 ppb
2013-07-16	1307554-001A	0.530 ppb
2013-07-16	1307545-001A	0.430 ppb
2013-07-16	1307544-001A	0.520 ppb
2013-07-16	1307548-001A	0.550 ppb
2013-07-16	1307538-001A	0.320 ppb
2013-07-16	1307539-001A	0.380 ppb
2013-07-16	1307540-001A	0.460 ppb
2013-07-16	1307552-001A	0.480 ppb
2013-07-17	1307587-001A	0.560 ppb
2013-07-17	1307592-001A	0.530 ppb
2013-07-17	1307593-001A	0.370 ppb
2013-07-17	1307543-001A	0.520 ppb
2013-07-17	1307588-001A	0.500 ppb
2013-07-17	1307590-001A	0.490 ppb
2013-07-17	1307594-001A	0.500 ppb
2013-07-17	1307546-001A	0.450 ppb
2013-07-17	1307547-001A	0.510 ppb
2013-07-17	1307591-001A	0.590 ppb
2013-07-30	1307A06-001A	0.240 ppb
2013-07-31	1307A07-001A	0.420 ppb
2013-10-15	1310526-001A	0.240 ppb
2013-10-15	1310596-001A	0.240 ppb
2013-10-15	1310536-001A	0.270 ppb
2013-10-15	1310525-001A	0.260 ppb
2013-10-15	1310581-001A	0.260 ppb
2013-10-15	1310532-001A	0.140 ppb
2013-10-15	1310528-001A	0.480 ppb
2013-10-15	1310529-001A	0.260 ppb
2013-10-15	1310531-001A	0.260 ppb
2013-10-15	1310530-001A	0.250 ppb
2013-10-15	1310577-001A	0.260 ppb
2013-10-15	1310534-001A	0.1000 ppb
2013-10-15	1310580-001A	0.230 ppb
2013-10-15	1310533-001A	0.110 ppb
2013-10-15	1310579-001A	0.240 ppb
2013-10-15	1310576-001A	0.260 ppb
2013-10-15	1310527-001A	0.500 ppb
2013-10-15	1310535-001A	0.0960 ppb
2013-10-15	1310524-001A	0.230 ppb
2013-10-15	1310595-001A	0.220 ppb
2013-10-16	1310592-001A	0.520 ppb
2013-10-16	1310594-001A	0.240 ppb
2013-10-16	1310597-001A	0.330 ppb
2013-10-16	1310583-001A	0.520 ppb
2013-10-16	1310582-001A	0.250 ppb
2013-10-16	1310586-001A	0.500 ppb
2013-10-16	1310584-001A	0.220 ppb
2013-10-16	1310589-001A	0.260 ppb
2013-10-16	1310591-001A	0.290 ppb
2013-10-16	1310588-001A	0.280 ppb
2013-10-16	1310590-001A	0.250 ppb
2013-10-16	1310587-001A	0.290 ppb
2013-10-16	1310585-001A	0.230 ppb
2013-10-16	1310593-001A	0.230 ppb
2013-11-12	1311454-001A	0.280 ppb
2014-01-21	1401595-001A	0.620 ppb
2014-01-21	1401602-001A	0.400 ppb
2014-01-21	1401750-001A	0.250 ppb
2014-01-21	1401596-001A	0.410 ppb
2014-01-21	1401592-001A	0.410 ppb
2014-01-21	1401597-001A	0.380 ppb
2014-01-21	1401598-001A	0.250 ppb
2014-01-21	1401600-001A	0.260 ppb
2014-01-21	1401594-001A	0.500 ppb
2014-01-21	1401590-001A	0.0830 ppb
2014-01-21	1401591-001A	0.0690 ppb
2014-01-21	1401587-001A	0.280 ppb
2014-01-21	1401589-001A	0.0870 ppb
2014-01-21	1401588-001A	0.470 ppb
2014-01-21	1401584-001A	0.270 ppb
2014-01-21	1401586-001A	0.260 ppb
2014-01-21	1401585-001A	0.260 ppb
2014-01-21	1401583-001A	0.250 ppb
2014-01-21	1401582-001A	0.230 ppb
2014-01-21	1401635-001A	0.400 ppb
2014-01-21	1401692-001A	0.250 ppb
2014-01-21	1401691-001A	0.250 ppb
2014-01-21	1401593-001A	0.310 ppb
2014-01-21	1401601-001A	0.0710 ppb
2014-01-21	1401599-001A	0.240 ppb
2014-01-21	1401693-001A	0.550 ppb
2014-01-21	1401641-001A	0.260 ppb
2014-01-21	1401603-001A	0.250 ppb
2014-01-22	1401639-001A	0.590 ppb
2014-01-22	1401637-001A	0.460 ppb
2014-01-22	1401636-001A	0.280 ppb
2014-01-22	1401634-001A	0.560 ppb
2014-01-22	1401604-001A	0.450 ppb
2014-01-22	1401638-001A	0.650 ppb
2014-01-22	1401640-001A	0.530 ppb
2014-02-05	1402322-001A	0.540 ppb
2014-02-05	1402196-001A	0.460 ppb
2014-02-05	1402205-001A	0.620 ppb
2014-02-05	1402190-001A	0.550 ppb
2014-02-05	1402211-001A	0.540 ppb
2014-02-05	1402198-001A	0.400 ppb
2014-02-05	1402193-001A	0.540 ppb
2014-02-05	1402184-001A	0.520 ppb
2014-02-05	1402199-001A	0.270 ppb
2014-02-05	1402197-001A	0.240 ppb
2014-02-05	1402201-001A	0.420 ppb
2014-02-05	1402192-001A	0.500 ppb
2014-02-05	1402185-001A	0.470 ppb
2014-02-05	1402202-001A	0.510 ppb
2014-02-05	1402186-001A	0.330 ppb
2014-02-05	1402191-001A	0.420 ppb
2014-02-05	1402187-001A	0.540 ppb
2014-02-05	1402178-001A	0.430 ppb
2014-02-05	1402179-001A	0.470 ppb
2014-02-05	1402177-001A	0.480 ppb
2014-02-05	1402182-001A	0.490 ppb
2014-02-05	1402175-001A	0.470 ppb
2014-02-05	1402180-001A	0.310 ppb
2014-02-05	1402183-001A	0.370 ppb
2014-02-05	1402181-001A	0.250 ppb
2014-02-05	1402176-001A	0.510 ppb
2014-02-05	1402195-001A	0.560 ppb
2014-02-05	1402189-001A	0.490 ppb
2014-02-05	1402188-001A	0.580 ppb
2014-02-05	1402200-001A	0.460 ppb
2014-03-17	1403595-001A	0.490 ppb
2014-04-14	1404632-001A	0.1000 ppb
2014-04-15	1404648-001A	0.270 ppb
2014-04-15	1404649-001A	0.260 ppb
2014-04-15	1404643-001A	0.270 ppb
2014-04-15	1404641-001A	0.450 ppb
2014-04-15	1404636-001A	0.250 ppb
2014-04-15	1404640-001A	0.240 ppb
2014-04-15	1404633-001A	0.350 ppb
2014-04-15	1404638-001A	0.250 ppb
2014-04-15	1404635-001A	0.0930 ppb
2014-04-15	1404637-001A	0.280 ppb
2014-04-15	1404639-001A	0.520 ppb
2014-04-15	1404631-001A	0.270 ppb
2014-04-15	1404627-001A	0.240 ppb
2014-04-15	1404645-001A	0.0920 ppb
2014-04-15	1404646-001A	0.230 ppb
2014-04-15	1404642-001A	0.250 ppb
2014-04-15	1404644-001A	0.250 ppb
2014-04-21	1404865-001A	0.270 ppb
2014-04-21	1404862-001A	0.440 ppb
2014-04-21	1404860-001A	0.470 ppb
2014-04-21	1404859-001A	0.480 ppb
2014-04-21	1404856-001A	0.570 ppb
2014-04-21	1404863-001A	0.260 ppb
2014-04-21	1404861-001A	0.280 ppb
2014-04-21	1404864-001A	0.280 ppb
2014-04-21	1404858-001A	0.340 ppb
2014-04-21	1404857-001A	0.500 ppb
2014-04-28	1404B01-001A	0.270 ppb
2014-04-28	1404A98-001A	0.300 ppb
2014-04-28	1404B04-001A	0.270 ppb
2014-04-28	1404B03-001A	0.290 ppb
2014-04-28	1404B02-001A	0.280 ppb