Butte Silverbow Water Dept Water System

MyTapWater.org's tap water quality report is the compilation of data collected from federal, state, and local government agencies, most prominently the EPA. We strive to populate the report with the latest data concerning water contaminants, lead and copper levels, and water quality violations. We only collect drinking water data from public water systems.

PWS Service Information
PWS ID: MT0000170
Type: Community water system
EPA Region: 08
Primary Service Area: Residential Area
Primary Source: Surface water
Population Served: 33,000
Contact Information
SCHULTZ, DAVID
SCHULTZ, DAVID
126 W GRANITE ST
BUTTE, MT 59701

This public water system services 1 municipality in 1 county.

Summary Results


A summary view of tests in which a water contaminant found to exceed the Maximum Contaminant Level (MCL) set by the EPA.

Maximum Contaminant Levels Exceeded (by year):

Contaminant Detailed Results


This a view of violations of maximum contaminant levels. Use the expanded view see result data for a drinking water contaminant, the minimum level that can be recognized in a test (MRL), and upper limit that is considered healthy (HRL).

HAA5

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0 0.00 47.9
2018 2018-08-07 0 0.00 19.5
2018 2018-08-07 0 0.00 49.7
2018 2018-08-07 0 0.00 29
2018 2018-05-08 0 0.00 30
2018 2018-05-08 0 0.00 12.3
2018 2018-05-08 0 0.00 18
2018 2018-05-08 0 0.00 25
2018 2018-02-12 0 0.00 26
2018 2018-02-12 0 0.00 8
2018 2018-02-12 0 0.00 28.9
2018 2018-02-12 0 0.00 13.4

HAA6Br

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0 0.00 2.6
2018 2018-08-07 0 0.00 2.02
2018 2018-08-07 0 0.00 3.4
2018 2018-08-07 0 0.00 1.65
2018 2018-05-08 0 0.00 2.8
2018 2018-05-08 0 0.00 1.55
2018 2018-05-08 0 0.00 1.97
2018 2018-05-08 0 0.00 1.7
2018 2018-02-12 0 0.00 2.4
2018 2018-02-12 0 0.00 1.28
2018 2018-02-12 0 0.00 2.5
2018 2018-02-12 0 0.00 1.54

HAA9

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0 0.00 50.5
2018 2018-08-07 0 0.00 21.52
2018 2018-08-07 0 0.00 53.1
2018 2018-08-07 0 0.00 30.65
2018 2018-05-08 0 0.00 32.8
2018 2018-05-08 0 0.00 13.85
2018 2018-05-08 0 0.00 19.97
2018 2018-05-08 0 0.00 26.7
2018 2018-02-12 0 0.00 28.4
2018 2018-02-12 0 0.00 9.28
2018 2018-02-12 0 0.00 31.4
2018 2018-02-12 0 0.00 14.94

1-butanol

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 2 0.00 < 2
2018 2018-08-07 2 0.00 < 2
2018 2018-08-07 2 0.00 < 2
2018 2018-05-08 2 0.00 < 2
2018 2018-05-08 2 0.00 < 2
2018 2018-05-08 2 0.00 < 2
2018 2018-02-12 2 0.00 < 2
2018 2018-02-12 2 0.00 < 2
2018 2018-02-12 2 0.00 < 2

2-methoxyethanol

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.4 0.00 < 0.4
2018 2018-08-07 0.4 0.00 < 0.4
2018 2018-08-07 0.4 0.00 < 0.4
2018 2018-05-08 0.4 0.00 < 0.4
2018 2018-05-08 0.4 0.00 < 0.4
2018 2018-05-08 0.4 0.00 < 0.4
2018 2018-02-12 0.4 0.00 < 0.4
2018 2018-02-12 0.4 0.00 < 0.4
2018 2018-02-12 0.4 0.00 < 0.4

2-propen-1-ol

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.5 0.00 < 0.5
2018 2018-08-07 0.5 0.00 < 0.5
2018 2018-08-07 0.5 0.00 < 0.5
2018 2018-05-08 0.5 0.00 < 0.5
2018 2018-05-08 0.5 0.00 < 0.5
2018 2018-05-08 0.5 0.00 < 0.5
2018 2018-02-12 0.5 0.00 < 0.5
2018 2018-02-12 0.5 0.00 < 0.5
2018 2018-02-12 0.5 0.00 < 0.5

alpha-hexachlorocyclohexane

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.01 0.00 < 0.01
2018 2018-08-07 0.01 0.00 < 0.01
2018 2018-08-07 0.01 0.00 < 0.01
2018 2018-06-18 0.01 0.00 < 0.01
2018 2018-05-08 0.01 0.00 < 0.01
2018 2018-05-08 0.01 0.00 < 0.01
2018 2018-02-12 0.01 0.00 < 0.01
2018 2018-02-12 0.01 0.00 < 0.01
2018 2018-02-12 0.01 0.00 < 0.01

butylated hydroxyanisole

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.03 0.00 < 0.03
2018 2018-08-07 0.03 0.00 < 0.03
2018 2018-08-07 0.03 0.00 < 0.03
2018 2018-05-08 0.03 0.00 < 0.03
2018 2018-05-08 0.03 0.00 < 0.03
2018 2018-05-08 0.03 0.00 < 0.03
2018 2018-02-12 0.03 0.00 < 0.03
2018 2018-02-12 0.03 0.00 < 0.03
2018 2018-02-12 0.03 0.00 < 0.03

chlorpyrifos

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.03 0.00 < 0.03
2018 2018-08-07 0.03 0.00 < 0.03
2018 2018-08-07 0.03 0.00 < 0.03
2018 2018-06-18 0.03 0.00 < 0.03
2018 2018-05-08 0.03 0.00 < 0.03
2018 2018-05-08 0.03 0.00 < 0.03
2018 2018-02-12 0.03 0.00 < 0.03
2018 2018-02-12 0.03 0.00 < 0.03
2018 2018-02-12 0.03 0.00 < 0.03

dimethipin

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.2 0.00 < 0.2
2018 2018-08-07 0.2 0.00 < 0.2
2018 2018-08-07 0.2 0.00 < 0.2
2018 2018-06-18 0.2 0.00 < 0.2
2018 2018-05-08 0.2 0.00 < 0.2
2018 2018-05-08 0.2 0.00 < 0.2
2018 2018-02-12 0.2 0.00 < 0.2
2018 2018-02-12 0.2 0.00 < 0.2
2018 2018-02-12 0.2 0.00 < 0.2

ethoprop

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.03 0.00 < 0.03
2018 2018-08-07 0.03 0.00 < 0.03
2018 2018-08-07 0.03 0.00 < 0.03
2018 2018-06-18 0.03 0.00 < 0.03
2018 2018-05-08 0.03 0.00 < 0.03
2018 2018-05-08 0.03 0.00 < 0.03
2018 2018-02-12 0.03 0.00 < 0.03
2018 2018-02-12 0.03 0.00 < 0.03
2018 2018-02-12 0.03 0.00 < 0.03

germanium

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.3 0.00 < 0.3
2018 2018-08-07 0.3 0.00 < 0.3
2018 2018-08-07 0.3 0.00 < 0.3
2018 2018-05-08 0.3 0.00 < 0.3
2018 2018-05-08 0.3 0.00 < 0.3
2018 2018-05-08 0.3 0.00 < 0.3
2018 2018-02-12 0.3 0.00 < 0.3
2018 2018-02-12 0.3 0.00 < 0.3
2018 2018-02-12 0.3 0.00 < 0.3

manganese

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.4 0.00 14
2018 2018-08-07 0.4 0.00 1.1
2018 2018-08-07 0.4 0.00 9.4
2018 2018-05-08 0.4 0.00 1.4
2018 2018-05-08 0.4 0.00 1.8
2018 2018-05-08 0.4 0.00 3.8
2018 2018-02-12 0.4 0.00 6.9
2018 2018-02-12 0.4 0.00 4.8
2018 2018-02-12 0.4 0.00 7.4

o-toluidine

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.007 0.00 < 0.007
2018 2018-08-07 0.007 0.00 < 0.007
2018 2018-08-07 0.007 0.00 < 0.007
2018 2018-05-08 0.007 0.00 < 0.007
2018 2018-05-08 0.007 0.00 < 0.007
2018 2018-05-08 0.007 0.00 < 0.007
2018 2018-02-12 0.007 0.00 < 0.007
2018 2018-02-12 0.007 0.00 < 0.007
2018 2018-02-12 0.007 0.00 < 0.007

oxyfluorfen

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.05 0.00 < 0.05
2018 2018-08-07 0.05 0.00 < 0.05
2018 2018-08-07 0.05 0.00 < 0.05
2018 2018-06-18 0.05 0.00 < 0.05
2018 2018-05-08 0.05 0.00 < 0.05
2018 2018-05-08 0.05 0.00 < 0.05
2018 2018-02-12 0.05 0.00 < 0.05
2018 2018-02-12 0.05 0.00 < 0.05
2018 2018-02-12 0.05 0.00 < 0.05

profenofos

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.3 0.00 < 0.3
2018 2018-08-07 0.3 0.00 < 0.3
2018 2018-08-07 0.3 0.00 < 0.3
2018 2018-06-18 0.3 0.00 < 0.3
2018 2018-05-08 0.3 0.00 < 0.3
2018 2018-05-08 0.3 0.00 < 0.3
2018 2018-02-12 0.3 0.00 < 0.3
2018 2018-02-12 0.3 0.00 < 0.3
2018 2018-02-12 0.3 0.00 < 0.3

quinoline

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.02 0.00 < 0.02
2018 2018-08-07 0.02 0.00 < 0.02
2018 2018-08-07 0.02 0.00 < 0.02
2018 2018-05-08 0.02 0.00 < 0.02
2018 2018-05-08 0.02 0.00 < 0.02
2018 2018-05-08 0.02 0.00 < 0.02
2018 2018-02-12 0.02 0.00 < 0.02
2018 2018-02-12 0.02 0.00 < 0.02
2018 2018-02-12 0.02 0.00 < 0.02

tebuconazole

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.2 0.00 < 0.2
2018 2018-08-07 0.2 0.00 < 0.2
2018 2018-08-07 0.2 0.00 < 0.2
2018 2018-06-18 0.2 0.00 < 0.2
2018 2018-05-08 0.2 0.00 < 0.2
2018 2018-05-08 0.2 0.00 < 0.2
2018 2018-02-12 0.2 0.00 < 0.2
2018 2018-02-12 0.2 0.00 < 0.2
2018 2018-02-12 0.2 0.00 < 0.2

total permethrin

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.04 0.00 < 0.04
2018 2018-08-07 0.04 0.00 < 0.04
2018 2018-08-07 0.04 0.00 < 0.04
2018 2018-06-18 0.04 0.00 < 0.04
2018 2018-05-08 0.04 0.00 < 0.04
2018 2018-05-08 0.04 0.00 < 0.04
2018 2018-02-12 0.04 0.00 < 0.04
2018 2018-02-12 0.04 0.00 < 0.04
2018 2018-02-12 0.04 0.00 < 0.04

tribufos

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-07 0.07 0.00 < 0.07
2018 2018-08-07 0.07 0.00 < 0.07
2018 2018-08-07 0.07 0.00 < 0.07
2018 2018-06-18 0.07 0.00 < 0.07
2018 2018-05-08 0.07 0.00 < 0.07
2018 2018-05-08 0.07 0.00 < 0.07
2018 2018-02-12 0.07 0.00 < 0.07
2018 2018-02-12 0.07 0.00 < 0.07
2018 2018-02-12 0.07 0.00 < 0.07

anatoxin-a

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-21 0.03 0.00 < 0.03
2018 2018-08-21 0.03 0.00 < 0.03
2018 2018-08-21 0.03 0.00 < 0.03
2018 2018-08-07 0.03 0.00 < 0.03
2018 2018-08-07 0.03 0.00 < 0.03
2018 2018-08-07 0.03 0.00 < 0.03

cylindrospermopsin

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2018 2018-08-21 0.09 0.00 < 0.09
2018 2018-08-21 0.09 0.00 < 0.09
2018 2018-08-21 0.09 0.00 < 0.09
2018 2018-08-07 0.09 0.00 < 0.09
2018 2018-08-07 0.09 0.00 < 0.09
2018 2018-08-07 0.09 0.00 < 0.09

chlorate

Year Test Date MRLMinimum Reporting Level HRLHealth Risk Limit Test Result
2014 2014-04-28 20 210 < 20
2014 2014-04-28 20 210 < 20
2014 2014-04-28 20 210 < 20
2014 2014-04-28 20 210 < 20
2014 2014-04-28 20 210 < 20
2014 2014-04-28 20 210 55.5
2014 2014-01-16 20 210 < 20
2014 2014-01-16 20 210 < 20
2014 2014-01-16 20 210 < 20
2014 2014-01-16 20 210 < 20
2014 2014-01-16 20 210 < 20
2014 2014-01-16 20 210 270.5
2013 2013-10-30 20 210 < 20
2013 2013-10-30 20 210 < 20
2013 2013-10-17 20 210 < 20
2013 2013-10-17 20 210 < 20
2013 2013-10-17 20 210 261.7
2013 2013-10-17 20 210 258.1
2013 2013-07-10 20 210 < 20
2013 2013-07-10 20 210 < 20
2013 2013-07-10 20 210 < 20
2013 2013-07-10 20 210 < 20
2013 2013-07-10 20 210 103.3
2013 2013-07-10 20 210 < 20

Other Water Contaminants Tested


The following contaminants were tested and found to be within national EPA guidelines.

Contaminant MRLMinimum Reporting Level HRLHealth Risk Limit Avg Result
chromium 0.2 100 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.2 100 < 0.2
2014 2014-04-28 0.2 100 < 0.2
2014 2014-04-28 0.2 100 < 0.2
2014 2014-04-28 0.2 100 < 0.2
2014 2014-04-28 0.2 100 < 0.2
2014 2014-04-28 0.2 100 < 0.2
2014 2014-01-16 0.2 100 < 0.2
2014 2014-01-16 0.2 100 < 0.2
2014 2014-01-16 0.2 100 < 0.2
2014 2014-01-16 0.2 100 < 0.2
2014 2014-01-16 0.2 100 < 0.2
2014 2014-01-16 0.2 100 < 0.2
2013 2013-10-30 0.2 100 < 0.2
2013 2013-10-30 0.2 100 < 0.2
2013 2013-10-17 0.2 100 < 0.2
2013 2013-10-17 0.2 100 < 0.2
2013 2013-10-17 0.2 100 < 0.2
2013 2013-10-17 0.2 100 < 0.2
2013 2013-07-10 0.2 100 < 0.2
2013 2013-07-10 0.2 100 < 0.2
2013 2013-07-10 0.2 100 < 0.2
2013 2013-07-10 0.2 100 < 0.2
2013 2013-07-10 0.2 100 < 0.2
2013 2013-07-10 0.2 100 < 0.2
chromium-6 0.03 0 0.0088 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.03 0 0.0411
2014 2014-04-28 0.03 0 < 0.03
2014 2014-04-28 0.03 0 0.0413
2014 2014-04-28 0.03 0 < 0.03
2014 2014-04-28 0.03 0 < 0.03
2014 2014-04-28 0.03 0 < 0.03
2014 2014-01-16 0.03 0 0.031
2014 2014-01-16 0.03 0 < 0.03
2014 2014-01-16 0.03 0 < 0.03
2014 2014-01-16 0.03 0 < 0.03
2014 2014-01-16 0.03 0 < 0.03
2014 2014-01-16 0.03 0 < 0.03
2013 2013-10-30 0.03 0 0.0363
2013 2013-10-30 0.03 0 < 0.03
2013 2013-10-17 0.03 0 < 0.03
2013 2013-10-17 0.03 0 < 0.03
2013 2013-10-17 0.03 0 < 0.03
2013 2013-10-17 0.03 0 < 0.03
2013 2013-07-10 0.03 0 0.0306
2013 2013-07-10 0.03 0 < 0.03
2013 2013-07-10 0.03 0 0.0316
2013 2013-07-10 0.03 0 < 0.03
2013 2013-07-10 0.03 0 < 0.03
2013 2013-07-10 0.03 0 < 0.03
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 1 70 < 1
2014 2014-04-28 1 70 < 1
2014 2014-04-28 1 70 < 1
2014 2014-04-28 1 70 < 1
2014 2014-04-28 1 70 < 1
2014 2014-04-28 1 70 < 1
2014 2014-01-16 1 70 < 1
2014 2014-01-16 1 70 < 1
2014 2014-01-16 1 70 < 1
2014 2014-01-16 1 70 < 1
2014 2014-01-16 1 70 < 1
2014 2014-01-16 1 70 < 1
2013 2013-10-30 1 70 < 1
2013 2013-10-30 1 70 < 1
2013 2013-10-17 1 70 < 1
2013 2013-10-17 1 70 < 1
2013 2013-10-17 1 70 < 1
2013 2013-10-17 1 70 < 1
2013 2013-07-10 1 70 < 1
2013 2013-07-10 1 70 < 1
2013 2013-07-10 1 70 < 1
2013 2013-07-10 1 70 < 1
2013 2013-07-10 1 70 < 1
2013 2013-07-10 1 70 < 1
molybdenum 1 40 1.0456 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 1 40 1.432
2014 2014-04-28 1 40 < 1
2014 2014-04-28 1 40 1.531
2014 2014-04-28 1 40 < 1
2014 2014-04-28 1 40 < 1
2014 2014-04-28 1 40 1.028
2014 2014-01-16 1 40 1.462
2014 2014-01-16 1 40 1.087
2014 2014-01-16 1 40 1.559
2014 2014-01-16 1 40 1.093
2014 2014-01-16 1 40 1.177
2014 2014-01-16 1 40 1.23
2013 2013-10-30 1 40 1.489
2013 2013-10-30 1 40 1.594
2013 2013-10-17 1 40 < 1
2013 2013-10-17 1 40 < 1
2013 2013-10-17 1 40 1.2
2013 2013-10-17 1 40 1.166
2013 2013-07-10 1 40 1.465
2013 2013-07-10 1 40 1.303
2013 2013-07-10 1 40 1.472
2013 2013-07-10 1 40 1.355
2013 2013-07-10 1 40 1.279
2013 2013-07-10 1 40 1.173
strontium 0.3 1500 82.4088 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.3 1500 88.52
2014 2014-04-28 0.3 1500 79.95
2014 2014-04-28 0.3 1500 87.95
2014 2014-04-28 0.3 1500 78.73
2014 2014-04-28 0.3 1500 83.82
2014 2014-04-28 0.3 1500 82.84
2014 2014-01-16 0.3 1500 87.3
2014 2014-01-16 0.3 1500 97.6
2014 2014-01-16 0.3 1500 85.2
2014 2014-01-16 0.3 1500 96.1
2014 2014-01-16 0.3 1500 70.9
2014 2014-01-16 0.3 1500 74.3
2013 2013-10-30 0.3 1500 78.1
2013 2013-10-30 0.3 1500 78.9
2013 2013-10-17 0.3 1500 89.8
2013 2013-10-17 0.3 1500 91.2
2013 2013-10-17 0.3 1500 66.2
2013 2013-10-17 0.3 1500 69.4
2013 2013-07-10 0.3 1500 66.5
2013 2013-07-10 0.3 1500 101.9
2013 2013-07-10 0.3 1500 64.9
2013 2013-07-10 0.3 1500 100.2
2013 2013-07-10 0.3 1500 64.1
2013 2013-07-10 0.3 1500 93.4
vanadium 0.2 21 0.5893 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.2 21 0.6879
2014 2014-04-28 0.2 21 0.4014
2014 2014-04-28 0.2 21 0.7951
2014 2014-04-28 0.2 21 0.4594
2014 2014-04-28 0.2 21 0.3346
2014 2014-04-28 0.2 21 0.285
2014 2014-01-16 0.2 21 0.607
2014 2014-01-16 0.2 21 0.286
2014 2014-01-16 0.2 21 0.844
2014 2014-01-16 0.2 21 0.351
2014 2014-01-16 0.2 21 0.487
2014 2014-01-16 0.2 21 0.468
2013 2013-10-30 0.2 21 0.704
2013 2013-10-30 0.2 21 1.192
2013 2013-10-17 0.2 21 0.232
2013 2013-10-17 0.2 21 0.211
2013 2013-10-17 0.2 21 0.547
2013 2013-10-17 0.2 21 0.458
2013 2013-07-10 0.2 21 0.968
2013 2013-07-10 0.2 21 0.559
2013 2013-07-10 0.2 21 1.134
2013 2013-07-10 0.2 21 0.669
2013 2013-07-10 0.2 21 0.786
2013 2013-07-10 0.2 21 0.676
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.03 6.14 < 0.03
2014 2014-04-28 0.03 6.14 < 0.03
2014 2014-04-28 0.03 6.14 < 0.03
2014 2014-01-16 0.03 6.14 < 0.03
2014 2014-01-16 0.03 6.14 < 0.03
2014 2014-01-16 0.03 6.14 < 0.03
2013 2013-10-30 0.03 6.14 < 0.03
2013 2013-10-17 0.03 6.14 < 0.03
2013 2013-10-17 0.03 6.14 < 0.03
2013 2013-07-10 0.03 6.14 < 0.03
2013 2013-07-10 0.03 6.14 < 0.03
2013 2013-07-10 0.03 6.14 < 0.03
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.03 0.0004 < 0.03
2014 2014-04-28 0.03 0.0004 < 0.03
2014 2014-04-28 0.03 0.0004 < 0.03
2014 2014-01-16 0.03 0.0004 < 0.03
2014 2014-01-16 0.03 0.0004 < 0.03
2014 2014-01-16 0.03 0.0004 < 0.03
2013 2013-10-30 0.03 0.0004 < 0.03
2013 2013-10-17 0.03 0.0004 < 0.03
2013 2013-10-17 0.03 0.0004 < 0.03
2013 2013-07-10 0.03 0.0004 < 0.03
2013 2013-07-10 0.03 0.0004 < 0.03
2013 2013-07-10 0.03 0.0004 < 0.03
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.1 0.0103 < 0.1
2014 2014-04-28 0.1 0.0103 < 0.1
2014 2014-04-28 0.1 0.0103 < 0.1
2014 2014-01-16 0.1 0.0103 < 0.1
2014 2014-01-16 0.1 0.0103 < 0.1
2014 2014-01-16 0.1 0.0103 < 0.1
2013 2013-10-30 0.1 0.0103 < 0.1
2013 2013-10-17 0.1 0.0103 < 0.1
2013 2013-10-17 0.1 0.0103 < 0.1
2013 2013-07-10 0.1 0.0103 < 0.1
2013 2013-07-10 0.1 0.0103 < 0.1
2013 2013-07-10 0.1 0.0103 < 0.1
1,4-dioxane 0.07 0.35 < 0.07 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.07 0.35 < 0.07
2014 2014-04-28 0.07 0.35 < 0.07
2014 2014-04-28 0.07 0.35 < 0.07
2014 2014-01-16 0.07 0.35 < 0.07
2014 2014-01-16 0.07 0.35 < 0.07
2014 2014-01-16 0.07 0.35 < 0.07
2013 2013-10-30 0.07 0.35 < 0.07
2013 2013-10-17 0.07 0.35 < 0.07
2013 2013-10-17 0.07 0.35 < 0.07
2013 2013-07-10 0.07 0.35 < 0.07
2013 2013-07-10 0.07 0.35 < 0.07
2013 2013-07-10 0.07 0.35 < 0.07
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.2 140 < 0.2
2014 2014-04-28 0.2 140 < 0.2
2014 2014-04-28 0.2 140 < 0.2
2014 2014-01-16 0.2 140 < 0.2
2014 2014-01-16 0.2 140 < 0.2
2014 2014-01-16 0.2 140 < 0.2
2013 2013-10-30 0.2 140 < 0.2
2013 2013-10-17 0.2 140 < 0.2
2013 2013-10-17 0.2 140 < 0.2
2013 2013-07-10 0.2 140 < 0.2
2013 2013-07-10 0.2 140 < 0.2
2013 2013-07-10 0.2 140 < 0.2
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.2 2.69 < 0.2
2014 2014-04-28 0.2 2.69 < 0.2
2014 2014-04-28 0.2 2.69 < 0.2
2014 2014-01-16 0.2 2.69 < 0.2
2014 2014-01-16 0.2 2.69 < 0.2
2014 2014-01-16 0.2 2.69 < 0.2
2013 2013-10-30 0.2 2.69 < 0.2
2013 2013-10-17 0.2 2.69 < 0.2
2013 2013-10-17 0.2 2.69 < 0.2
2013 2013-07-10 0.2 2.69 < 0.2
2013 2013-07-10 0.2 2.69 < 0.2
2013 2013-07-10 0.2 2.69 < 0.2
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.06 90 < 0.06
2014 2014-04-28 0.06 90 < 0.06
2014 2014-04-28 0.06 90 < 0.06
2014 2014-01-16 0.06 90 < 0.06
2014 2014-01-16 0.06 90 < 0.06
2014 2014-01-16 0.06 90 < 0.06
2013 2013-10-30 0.06 90 < 0.06
2013 2013-10-17 0.06 90 < 0.06
2013 2013-10-17 0.06 90 < 0.06
2013 2013-07-10 0.06 90 < 0.06
2013 2013-07-10 0.06 90 < 0.06
2013 2013-07-10 0.06 90 < 0.06
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.08 0 < 0.08
2014 2014-04-28 0.08 0 < 0.08
2014 2014-04-28 0.08 0 < 0.08
2014 2014-01-16 0.08 0 < 0.08
2014 2014-01-16 0.08 0 < 0.08
2014 2014-01-16 0.08 0 < 0.08
2013 2013-10-30 0.08 0 < 0.08
2013 2013-10-17 0.08 0 < 0.08
2013 2013-10-17 0.08 0 < 0.08
2013 2013-07-10 0.08 0 < 0.08
2013 2013-07-10 0.08 0 < 0.08
2013 2013-07-10 0.08 0 < 0.08
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.09 0 < 0.09
2014 2014-04-28 0.09 0 < 0.09
2014 2014-04-28 0.09 0 < 0.09
2014 2014-01-16 0.09 0 < 0.09
2014 2014-01-16 0.09 0 < 0.09
2014 2014-01-16 0.09 0 < 0.09
2013 2013-11-25 0.09 0 < 0.09
2013 2013-10-17 0.09 0 < 0.09
2013 2013-10-17 0.09 0 < 0.09
2013 2013-07-10 0.09 0 < 0.09
2013 2013-07-10 0.09 0 < 0.09
2013 2013-07-10 0.09 0 < 0.09
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.01 0 < 0.01
2014 2014-04-28 0.01 0 < 0.01
2014 2014-04-28 0.01 0 < 0.01
2014 2014-01-16 0.01 0 < 0.01
2014 2014-01-16 0.01 0 < 0.01
2014 2014-01-16 0.01 0 < 0.01
2013 2013-11-25 0.01 0 < 0.01
2013 2013-10-17 0.01 0 < 0.01
2013 2013-10-17 0.01 0 < 0.01
2013 2013-07-10 0.01 0 < 0.01
2013 2013-07-10 0.01 0 < 0.01
2013 2013-07-10 0.01 0 < 0.01
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.03 0 < 0.03
2014 2014-04-28 0.03 0 < 0.03
2014 2014-04-28 0.03 0 < 0.03
2014 2014-01-16 0.03 0 < 0.03
2014 2014-01-16 0.03 0 < 0.03
2014 2014-01-16 0.03 0 < 0.03
2013 2013-11-25 0.03 0 < 0.03
2013 2013-10-17 0.03 0 < 0.03
2013 2013-10-17 0.03 0 < 0.03
2013 2013-07-10 0.03 0 < 0.03
2013 2013-07-10 0.03 0 < 0.03
2013 2013-07-10 0.03 0 < 0.03
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.02 0 < 0.02
2014 2014-04-28 0.02 0 < 0.02
2014 2014-04-28 0.02 0 < 0.02
2014 2014-01-16 0.02 0 < 0.02
2014 2014-01-16 0.02 0 < 0.02
2014 2014-01-16 0.02 0 < 0.02
2013 2013-11-25 0.02 0 < 0.02
2013 2013-10-17 0.02 0 < 0.02
2013 2013-10-17 0.02 0 < 0.02
2013 2013-07-10 0.02 0 < 0.02
2013 2013-07-10 0.02 0 < 0.02
2013 2013-07-10 0.02 0 < 0.02
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.02 0.07 < 0.02
2014 2014-04-28 0.02 0.07 < 0.02
2014 2014-04-28 0.02 0.07 < 0.02
2014 2014-01-16 0.02 0.07 < 0.02
2014 2014-01-16 0.02 0.07 < 0.02
2014 2014-01-16 0.02 0.07 < 0.02
2013 2013-11-25 0.02 0.07 < 0.02
2013 2013-10-17 0.02 0.07 < 0.02
2013 2013-10-17 0.02 0.07 < 0.02
2013 2013-07-10 0.02 0.07 < 0.02
2013 2013-07-10 0.02 0.07 < 0.02
2013 2013-07-10 0.02 0.07 < 0.02
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-28 0.04 0.07 < 0.04
2014 2014-04-28 0.04 0.07 < 0.04
2014 2014-04-28 0.04 0.07 < 0.04
2014 2014-01-16 0.04 0.07 < 0.04
2014 2014-01-16 0.04 0.07 < 0.04
2014 2014-01-16 0.04 0.07 < 0.04
2013 2013-11-25 0.04 0.07 < 0.04
2013 2013-10-17 0.04 0.07 < 0.04
2013 2013-10-17 0.04 0.07 < 0.04
2013 2013-07-10 0.04 0.07 < 0.04
2013 2013-07-10 0.04 0.07 < 0.04
2013 2013-07-10 0.04 0.07 < 0.04

Lead and Copper Data


Lead and copper are recorded separately from other contaminants because of the Lead and Copper Rule. As with all other results, these are the findings at the water supply level. Lead and copper can be — and often are — deposited in drinking water in between the water facility and your tap.

Sample ID Contaminant Sampling Start Date Sampling End Date Result
MT22880 lead 2018-01-01 2018-06-30 0.00283mg/L
MT22632 lead 2017-07-01 2017-12-31 0.0039mg/L
MT21281 lead 2014-01-01 2016-12-31 0.00377mg/L
MT18905 lead 2011-01-01 2013-12-31 0.00857mg/L
MT16408 lead 2008-01-01 2010-12-31 0.0105mg/L

Violations


Known violations of the Safe Drinking Water Act as recorded by the EPA.

Compliance Dates Rule Violation Type Contaminant Name Status
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular Ethylbenzene Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloropropane Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloroethane Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular 1,2,4-Trichlorobenzene Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular 1,1,2-Trichloroethane Returned to Compliance
2012-01-01 - 2012-12-31 Arsenic Monitoring, Regular Arsenic Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular 1,1,1-Trichloroethane Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular Benzene Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular 1,1-Dichloroethylene Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular Carbon tetrachloride Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular CHLOROBENZENE Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular cis-1,2-Dichloroethylene Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular DICHLOROMETHANE Returned to Compliance
2012-01-01 - 2012-12-31 Nitrates Monitoring, Regular Nitrate-Nitrite Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular o-Dichlorobenzene Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular p-Dichlorobenzene Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular Styrene Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular Tetrachloroethylene Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular Toluene Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular trans-1,2-Dichloroethylene Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular Trichloroethylene Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular Vinyl chloride Returned to Compliance
2012-01-01 - 2012-12-31 Volatile Organic Chemicals Monitoring, Regular Xylenes, Total Returned to Compliance
2012-04-01 - 2012-04-30 Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
2011-04-01 - 2011-06-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Maximum Contaminant Level Violation, Average Total Haloacetic Acids (HAA5) Returned to Compliance
2010-07-01 - 2010-09-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Maximum Contaminant Level Violation, Average Total Haloacetic Acids (HAA5) Returned to Compliance
2006-01-01 - 2006-03-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) TTHM Returned to Compliance
2006-01-01 - 2006-03-31 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Total Haloacetic Acids (HAA5) Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular Ethylbenzene Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular trans-1,2-Dichloroethylene Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular Toluene Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular Trichloroethylene Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular Tetrachloroethylene Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular Styrene Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular Vinyl chloride Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular p-Dichlorobenzene Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular o-Dichlorobenzene Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular Xylenes, Total Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloropropane Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular DICHLOROMETHANE Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular cis-1,2-Dichloroethylene Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular CHLOROBENZENE Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular 1,1-Dichloroethylene Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular Carbon tetrachloride Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular 1,1,1-Trichloroethane Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular Benzene Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular 1,1,2-Trichloroethane Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloroethane Returned to Compliance
2000-01-01 - 2000-12-31 Volatile Organic Chemicals Monitoring, Regular 1,2,4-Trichlorobenzene Returned to Compliance
2000-09-01 - 2000-09-30 Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
2012-04-24 - N/A Surface Water Treatment Rule Failure to Filter (SWTR) Surface Water Treatment Rule Returned to Compliance
- N/A Surface Water Treatment Rule Failure to Filter (SWTR) Surface Water Treatment Rule Returned to Compliance
- N/A Total Coliform Rule Monitoring, Routine Major (TCR) Coliform (TCR) Returned to Compliance
- N/A Volatile Organic Chemicals Monitoring, Regular Trichloroethylene Returned to Compliance
- N/A Total Coliform Rule Monitoring, Routine Minor (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Returned to Compliance
- N/A Nitrates Monitoring, Regular Nitrate Returned to Compliance
- N/A Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Returned to Compliance
- N/A Total Coliform Rule Monitoring, Repeat Major (TCR) Coliform (TCR) Returned to Compliance

Local Water Testing


Find a lab in your area so you can get your tap or well water tested. This list contains both governmental and private labs, all of which are EPA-certified for drinking water testing.

Lab Location Zip Code
Bridger Analytical Lab Bozeman, MT 59718
Copper Mountain Laboratory Butte, MT 59702
Montana Bureau of Mines and Geology Butte, MT 59701

Water Bill Information


Convenient information about your water service.

Unable to identify any billing information about Butte Silverbow Water Dept (MT0000170).

What My Water Data Means


Water data isn't always easy to interpret, but by following the links on this page you should be able to have most of your questions answered. By clicking the name of a water contaminant or secondary substance you can learn about that specific substance. Ultimately this page should give you some insight towards learning if your water is safe, what water filter you should buy (if any), and how well your local water compares against other sources.

Sources


The origin of MyTapWater.org's water data is explained on our Data Sources page.

Why Is My Water Data Not More Recent?


The recency of the data for your ZIP code depends on the last your water source was tested, by a federal, state, or local agency. More information about the timing can be determined by learning about the dataset in question and seeing how often the EPA (other another governing body) mandated testing.