Public Water System: City Of Lancaster

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: PA7360058
Type: Community water system
EPA Region: 03
Primary Service Area: Residential Area
Primary Source: Surface water
Population Served: 120,000
Contact Information
CITY OF LANCASTER
CHARLOTTE KATZENMOYER, DIR PUB
120 N DUKE ST PO BOX 1599
LANCASTER, PA 17603

This public water system services 1 zip code in 1 municipality in 1 county.

Summary Results


A summary view of the the times a water contaminant was tested and found to exceed the level set by the EPA (the MCL).

Maximum Contaminant Levels Exceeded (by year):

2013   (1) 2014   (0) 2015   (0)
chlorate

Contaminant Detailed Results


This a view of violations of maximum contaminant levels. In the expanded view you can see each know test date for a given contaminant, the result of the test, the minimum level that can be recognized in a test (MRL), and upper limit that is considered healthy (HRL).

chlorate

Year Test Date MRL HRL Test Result
2014 2014-04-16 20 210 151
2014 2014-04-16 20 210 88.5
2014 2014-04-16 20 210 152
2014 2014-04-16 20 210 89.8
2014 2014-01-28 20 210 144
2014 2014-01-28 20 210 107
2014 2014-01-28 20 210 117
2014 2014-01-28 20 210 153
2013 2013-10-08 20 210 210
2013 2013-10-08 20 210 172
2013 2013-10-08 20 210 227
2013 2013-10-08 20 210 153
2013 2013-07-17 20 210 374
2013 2013-07-17 20 210 376
2013 2013-07-17 20 210 375
2013 2013-07-17 20 210 352

Other Water Contaminants Tested


The following contaminants were tested and within national EPA guidelines.

Contaminant MRL HRL Avg Result
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.2 140 < 0.2
2014 2014-04-16 0.2 140 < 0.2
2014 2014-01-28 0.2 140 < 0.2
2014 2014-01-28 0.2 140 < 0.2
2013 2013-12-03 0.2 140 < 0.2
2013 2013-12-03 0.2 140 < 0.2
2013 2013-07-17 0.2 140 < 0.2
2013 2013-07-17 0.2 140 < 0.2
4-androstene-3,17-dione 0.0003 0 < 0.0003 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.0003 0 < 0.0003
2014 2014-04-16 0.0003 0 < 0.0003
2014 2014-03-18 0.0003 0 < 0.0003
2014 2014-01-28 0.0003 0 < 0.0003
2013 2013-10-08 0.0003 0 < 0.0003
2013 2013-10-08 0.0003 0 < 0.0003
2013 2013-07-17 0.0003 0 < 0.0003
2013 2013-07-17 0.0003 0 < 0.0003
estrone 0.002 0.35 < 0.002 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.002 0.35 < 0.002
2014 2014-04-16 0.002 0.35 < 0.002
2014 2014-03-18 0.002 0.35 < 0.002
2014 2014-01-28 0.002 0.35 < 0.002
2013 2013-10-08 0.002 0.35 < 0.002
2013 2013-10-08 0.002 0.35 < 0.002
2013 2013-07-17 0.002 0.35 < 0.002
2013 2013-07-17 0.002 0.35 < 0.002
estriol 0.0008 0.35 < 0.0008 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.0008 0.35 < 0.0008
2014 2014-04-16 0.0008 0.35 < 0.0008
2014 2014-03-18 0.0008 0.35 < 0.0008
2014 2014-01-28 0.0008 0.35 < 0.0008
2013 2013-10-08 0.0008 0.35 < 0.0008
2013 2013-10-08 0.0008 0.35 < 0.0008
2013 2013-07-17 0.0008 0.35 < 0.0008
2013 2013-07-17 0.0008 0.35 < 0.0008
testosterone 0.0001 0 < 0.0001 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.0001 0 < 0.0001
2014 2014-04-16 0.0001 0 < 0.0001
2014 2014-03-18 0.0001 0 < 0.0001
2014 2014-01-28 0.0001 0 < 0.0001
2013 2013-10-08 0.0001 0 < 0.0001
2013 2013-10-08 0.0001 0 < 0.0001
2013 2013-07-17 0.0001 0 < 0.0001
2013 2013-07-17 0.0001 0 < 0.0001
17-beta-estradiol 0.0004 0.0009 < 0.0004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.0004 0.0009 < 0.0004
2014 2014-04-16 0.0004 0.0009 < 0.0004
2014 2014-03-18 0.0004 0.0009 < 0.0004
2014 2014-01-28 0.0004 0.0009 < 0.0004
2013 2013-10-08 0.0004 0.0009 < 0.0004
2013 2013-10-08 0.0004 0.0009 < 0.0004
2013 2013-07-17 0.0004 0.0009 < 0.0004
2013 2013-07-17 0.0004 0.0009 < 0.0004
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.08 0 < 0.08
2014 2014-04-16 0.08 0 < 0.08
2014 2014-01-28 0.08 0 < 0.08
2014 2014-01-28 0.08 0 < 0.08
2013 2013-12-03 0.08 0 < 0.08
2013 2013-12-03 0.08 0 < 0.08
2013 2013-07-17 0.08 0 < 0.08
2013 2013-07-17 0.08 0 < 0.08
17-alpha-ethynylestradiol 0.0009 0.035 < 0.0009 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.0009 0.035 < 0.0009
2014 2014-04-16 0.0009 0.035 < 0.0009
2014 2014-03-18 0.0009 0.035 < 0.0009
2014 2014-01-28 0.0009 0.035 < 0.0009
2013 2013-10-08 0.0009 0.035 < 0.0009
2013 2013-10-08 0.0009 0.035 < 0.0009
2013 2013-07-17 0.0009 0.035 < 0.0009
2013 2013-07-17 0.0009 0.035 < 0.0009
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.2 2.69 < 0.2
2014 2014-04-16 0.2 2.69 < 0.2
2014 2014-01-28 0.2 2.69 < 0.2
2014 2014-01-28 0.2 2.69 < 0.2
2013 2013-12-03 0.2 2.69 < 0.2
2013 2013-12-03 0.2 2.69 < 0.2
2013 2013-07-17 0.2 2.69 < 0.2
2013 2013-07-17 0.2 2.69 < 0.2
Halon 1011 0.06 90 < 0.06 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.06 90 < 0.06
2014 2014-04-16 0.06 90 < 0.06
2014 2014-01-28 0.06 90 < 0.06
2014 2014-01-28 0.06 90 < 0.06
2013 2013-12-03 0.06 90 < 0.06
2013 2013-12-03 0.06 90 < 0.06
2013 2013-07-17 0.06 90 < 0.06
2013 2013-07-17 0.06 90 < 0.06
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.03 0.0004 < 0.03
2014 2014-04-16 0.03 0.0004 < 0.03
2014 2014-01-28 0.03 0.0004 < 0.03
2014 2014-01-28 0.03 0.0004 < 0.03
2013 2013-12-03 0.03 0.0004 < 0.03
2013 2013-12-03 0.03 0.0004 < 0.03
2013 2013-07-17 0.03 0.0004 < 0.03
2013 2013-07-17 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 2014-04-16 0.1 0.0103 < 0.1
2014 2014-04-16 0.1 0.0103 < 0.1
2014 2014-01-28 0.1 0.0103 < 0.1
2014 2014-01-28 0.1 0.0103 < 0.1
2013 2013-12-03 0.1 0.0103 < 0.1
2013 2013-12-03 0.1 0.0103 < 0.1
2013 2013-07-17 0.1 0.0103 < 0.1
2013 2013-07-17 0.1 0.0103 < 0.1
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.03 6.14 < 0.03
2014 2014-04-16 0.03 6.14 < 0.03
2014 2014-01-28 0.03 6.14 < 0.03
2014 2014-01-28 0.03 6.14 < 0.03
2013 2013-12-03 0.03 6.14 < 0.03
2013 2013-12-03 0.03 6.14 < 0.03
2013 2013-07-17 0.03 6.14 < 0.03
2013 2013-07-17 0.03 6.14 < 0.03
equilin 0.004 0.35 < 0.004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.004 0.35 < 0.004
2014 2014-04-16 0.004 0.35 < 0.004
2014 2014-03-18 0.004 0.35 < 0.004
2014 2014-01-28 0.004 0.35 < 0.004
2013 2013-10-08 0.004 0.35 < 0.004
2013 2013-10-08 0.004 0.35 < 0.004
2013 2013-07-17 0.004 0.35 < 0.004
2013 2013-07-17 0.004 0.35 < 0.004
chromium 0.2 100 0.2713 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.2 100 0.37
2014 2014-04-16 0.2 100 0.25
2014 2014-04-16 0.2 100 0.37
2014 2014-04-16 0.2 100 0.3
2014 2014-02-25 0.2 100 0.24
2014 2014-02-25 0.2 100 0.48
2014 2014-02-25 0.2 100 0.35
2014 2014-02-25 0.2 100 < 0.2
2013 2013-10-08 0.2 100 0.35
2013 2013-10-08 0.2 100 0.43
2013 2013-10-08 0.2 100 0.3
2013 2013-10-08 0.2 100 0.34
2013 2013-07-17 0.2 100 0.25
2013 2013-07-17 0.2 100 0.31
2013 2013-07-17 0.2 100 < 0.2
2013 2013-07-17 0.2 100 < 0.2
vanadium 0.2 21 0.3063 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.2 21 0.34
2014 2014-04-16 0.2 21 0.41
2014 2014-04-16 0.2 21 < 0.2
2014 2014-04-16 0.2 21 < 0.2
2014 2014-02-25 0.2 21 0.25
2014 2014-02-25 0.2 21 0.27
2014 2014-02-25 0.2 21 0.4
2014 2014-02-25 0.2 21 < 0.2
2013 2013-10-08 0.2 21 0.58
2013 2013-10-08 0.2 21 < 0.2
2013 2013-10-08 0.2 21 0.66
2013 2013-10-08 0.2 21 < 0.2
2013 2013-07-17 0.2 21 0.68
2013 2013-07-17 0.2 21 1.1
2013 2013-07-17 0.2 21 0.21
2013 2013-07-17 0.2 21 < 0.2
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.03 0 < 0.03
2014 2014-04-16 0.03 0 < 0.03
2014 2014-02-25 0.03 0 < 0.03
2014 2014-02-25 0.03 0 < 0.03
2013 2013-10-08 0.03 0 < 0.03
2013 2013-10-08 0.03 0 < 0.03
2013 2013-08-30 0.03 0 < 0.03
2013 2013-08-30 0.03 0 < 0.03
1,4-dioxane 0.07 0.35 0.0088 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.07 0.35 < 0.07
2014 2014-04-16 0.07 0.35 < 0.07
2014 2014-01-28 0.07 0.35 0.07
2014 2014-01-28 0.07 0.35 < 0.07
2013 2013-10-08 0.07 0.35 < 0.07
2013 2013-10-08 0.07 0.35 < 0.07
2013 2013-07-17 0.07 0.35 < 0.07
2013 2013-07-17 0.07 0.35 < 0.07
molybdenum 1 40 0.0813 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 1 40 < 1
2014 2014-04-16 1 40 < 1
2014 2014-04-16 1 40 < 1
2014 2014-04-16 1 40 < 1
2014 2014-02-25 1 40 < 1
2014 2014-02-25 1 40 < 1
2014 2014-02-25 1 40 < 1
2014 2014-02-25 1 40 < 1
2013 2013-10-08 1 40 < 1
2013 2013-10-08 1 40 1.3
2013 2013-10-08 1 40 < 1
2013 2013-10-08 1 40 < 1
2013 2013-07-17 1 40 < 1
2013 2013-07-17 1 40 < 1
2013 2013-07-17 1 40 < 1
2013 2013-07-17 1 40 < 1
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 1 70 < 1
2014 2014-04-16 1 70 < 1
2014 2014-04-16 1 70 < 1
2014 2014-04-16 1 70 < 1
2014 2014-02-25 1 70 < 1
2014 2014-02-25 1 70 < 1
2014 2014-02-25 1 70 < 1
2014 2014-02-25 1 70 < 1
2013 2013-10-08 1 70 < 1
2013 2013-10-08 1 70 < 1
2013 2013-10-08 1 70 < 1
2013 2013-10-08 1 70 < 1
2013 2013-07-17 1 70 < 1
2013 2013-07-17 1 70 < 1
2013 2013-07-17 1 70 < 1
2013 2013-07-17 1 70 < 1
chromium-6 0.03 0 0.1098 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.03 0 0.15
2014 2014-04-16 0.03 0 0.34
2014 2014-04-16 0.03 0 0.048
2014 2014-04-16 0.03 0 0.075
2014 2014-01-28 0.03 0 0.15
2014 2014-01-28 0.03 0 0.071
2014 2014-01-28 0.03 0 0.23
2014 2014-01-28 0.03 0 0.059
2013 2013-10-08 0.03 0 0.096
2013 2013-10-08 0.03 0 0.17
2013 2013-10-08 0.03 0 0.065
2013 2013-10-08 0.03 0 0.052
2013 2013-07-17 0.03 0 0.042
2013 2013-07-17 0.03 0 0.14
2013 2013-07-17 0.03 0 0.036
2013 2013-07-17 0.03 0 0.033
strontium 0.3 1500 157.3938 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.3 1500 227
2014 2014-04-16 0.3 1500 95
2014 2014-04-16 0.3 1500 216
2014 2014-04-16 0.3 1500 93.2
2014 2014-02-25 0.3 1500 188
2014 2014-02-25 0.3 1500 132
2014 2014-02-25 0.3 1500 172
2014 2014-02-25 0.3 1500 134
2013 2013-10-08 0.3 1500 213
2013 2013-10-08 0.3 1500 210
2013 2013-10-08 0.3 1500 156
2013 2013-10-08 0.3 1500 157
2013 2013-07-17 0.3 1500 158
2013 2013-07-17 0.3 1500 172
2013 2013-07-17 0.3 1500 95.9
2013 2013-07-17 0.3 1500 99.2
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.02 0.07 < 0.02
2014 2014-04-16 0.02 0.07 < 0.02
2014 2014-02-25 0.02 0.07 < 0.02
2014 2014-02-25 0.02 0.07 < 0.02
2013 2013-10-08 0.02 0.07 < 0.02
2013 2013-10-08 0.02 0.07 < 0.02
2013 2013-08-30 0.02 0.07 < 0.02
2013 2013-08-30 0.02 0.07 < 0.02
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.02 0 < 0.02
2014 2014-04-16 0.02 0 < 0.02
2014 2014-02-25 0.02 0 < 0.02
2014 2014-02-25 0.02 0 < 0.02
2013 2013-10-08 0.02 0 < 0.02
2013 2013-10-08 0.02 0 < 0.02
2013 2013-08-30 0.02 0 < 0.02
2013 2013-08-30 0.02 0 < 0.02
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.01 0 < 0.01
2014 2014-04-16 0.01 0 < 0.01
2014 2014-02-25 0.01 0 < 0.01
2014 2014-02-25 0.01 0 < 0.01
2013 2013-10-08 0.01 0 < 0.01
2013 2013-10-08 0.01 0 < 0.01
2013 2013-08-30 0.01 0 < 0.01
2013 2013-08-30 0.01 0 < 0.01
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.04 0.07 < 0.04
2014 2014-04-16 0.04 0.07 < 0.04
2014 2014-02-25 0.04 0.07 < 0.04
2014 2014-02-25 0.04 0.07 < 0.04
2013 2013-10-08 0.04 0.07 < 0.04
2013 2013-10-08 0.04 0.07 < 0.04
2013 2013-08-30 0.04 0.07 < 0.04
2013 2013-08-30 0.04 0.07 < 0.04
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2014 2014-04-16 0.09 0 < 0.09
2014 2014-04-16 0.09 0 < 0.09
2014 2014-02-25 0.09 0 < 0.09
2014 2014-02-25 0.09 0 < 0.09
2013 2013-10-08 0.09 0 < 0.09
2013 2013-10-08 0.09 0 < 0.09
2013 2013-08-30 0.09 0 < 0.09
2013 2013-08-30 0.09 0 < 0.09

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. Lead and copper can be — and often are — added to drinking water in between the water facility and a tap.

Sample ID Contaminant Sampling Start Date Sampling End Date Result
PBCU09201605064 lead 2016-06-01 2016-09-30 0.006mg/L
PBCU09201305171 lead 2013-06-01 2013-09-30 0.0045mg/L
6923910 lead 2010-01-01 2010-12-31 0.0048mg/L

Violations


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

Compliance Dates Rule Violation Type Contaminant Name Status
2016-10-01 - 2016-12-31 Stage 2 Disinfectants and Disinfection Byproducts Rule Maximum Contaminant Level Violation, Average Total Haloacetic Acids (HAA5) Returned to Compliance
2013-08-01 - 2013-08-31 Long Term 1 Enhanced Surface Water Treatment Rule Monitoring, Turbidity (Enhanced SWTR) Interim Enhanced Surfsce Water Treatment Rule Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular 1,2,4-Trichlorobenzene Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular cis-1,2-Dichloroethylene Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular Xylenes, Total Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular DICHLOROMETHANE Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular o-Dichlorobenzene Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular p-Dichlorobenzene Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular 1,1-Dichloroethylene Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular trans-1,2-Dichloroethylene Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloroethane Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular 1,1,1-Trichloroethane Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular Carbon tetrachloride Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular 1,2-Dichloropropane Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular Trichloroethylene Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular 1,1,2-Trichloroethane Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular Tetrachloroethylene Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular CHLOROBENZENE Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular Benzene Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular Toluene Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular Ethylbenzene Returned to Compliance
2011-01-01 - 2011-12-31 Volatile Organic Chemicals Monitoring, Regular Styrene Returned to Compliance
2010-10-01 - 2010-12-31 Nitrates Monitoring, Regular Nitrate Returned to Compliance
2010-10-01 - 2010-12-31 Nitrates Monitoring, Regular Nitrite Returned to Compliance
2010-10-01 - 2010-10-31 Surface Water Treatment Rule Monitoring of Treatment (SWTR-Filter) Surface Water Treatment Rule Returned to Compliance
2010-07-01 - 2010-07-31 Surface Water Treatment Rule Monitoring of Treatment (SWTR-Filter) Surface Water Treatment Rule Returned to Compliance
2001-07-01 - 2001-07-12 Consumer Confidence Rule Consumer Confidence Report Complete Failure to Report Consumer Confidence Rule Returned to Compliance
1999-10-01 - 1999-12-31 Synthetic Organic Chemicals Monitoring, Regular Di(2-ethylhexyl) adipate Returned to Compliance
1995-01-01 - 1997-03-17 Lead and Copper Rule OCCT/SOWT Treatment Installation/Demonstration Lead and Copper Rule Returned to Compliance
1996-01-01 - 1996-01-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
1992-06-01 - 1992-06-30 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
1992-05-01 - 1992-05-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
1992-04-01 - 1992-04-30 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Returned to Compliance
1991-07-01 - 1991-07-31 Surface Water Treatment Rule Monitoring of Treatment (SWTR-Filter) Surface Water Treatment Rule Known
1991-05-01 - 1991-05-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1991-03-01 - 1991-03-31 Surface Water Treatment Rule Monitoring of Treatment (SWTR-Filter) Surface Water Treatment Rule Known
1991-01-01 - 1991-01-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1990-12-01 - 1990-12-31 Surface Water Treatment Rule Treatment Technique (SWTR and GWR) Surface Water Treatment Rule Known
1990-12-01 - 1990-12-31 Surface Water Treatment Rule Monitoring of Treatment (SWTR-Filter) Surface Water Treatment Rule Known
1983-07-01 - 1987-06-30 Radionuclides Monitoring, Regular Gross Beta Particle Activity Returned to Compliance
1983-07-01 - 1987-06-30 Radionuclides Monitoring, Regular Tritium Returned to Compliance
1983-07-01 - 1987-06-30 Radionuclides Monitoring, Regular 38-STRONTIUM-90 Returned to Compliance
1986-01-01 - 1986-03-31 Total Trihalomethanes Maximum Contaminant Level Violation, Average TTHM Returned to Compliance
1984-06-25 - 1985-06-24 Inorganic Chemicals Monitoring, Regular Selenium Known
1984-06-25 - 1985-06-24 Inorganic Chemicals Monitoring, Regular Fluoride Known
1984-06-25 - 1985-06-24 Inorganic Chemicals Monitoring, Regular Mercury Known
1984-06-25 - 1985-06-24 Nitrates Monitoring, Regular Nitrate Known
1984-06-25 - 1985-06-24 Arsenic Monitoring, Regular Arsenic Known
1984-06-25 - 1985-06-24 Inorganic Chemicals Monitoring, Regular Barium Known
1984-06-25 - 1985-06-24 Inorganic Chemicals Monitoring, Regular Cadmium Known
1984-06-25 - 1985-06-24 Inorganic Chemicals Monitoring, Regular Chromium Known

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.