Public Water System: Mcallen Public Utility

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: TX1080006
Type: Community water system
EPA Region: 06
Primary Source: Surface water
Population Served: 168,909
Contact Information
DARLING, JIM
DARLING, JIM
PO BOX 220
MCALLEN, TX 78505-0220

This public water system services 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   (0) 2014   (1) 2015   (2)
chlorate chlorate
strontium

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
2015 2015-07-14 20 210 616
2015 2015-07-14 20 210 668
2015 2015-07-14 20 210 636
2015 2015-07-14 20 210 387
2015 2015-04-21 20 210 580
2015 2015-04-21 20 210 472
2015 2015-04-21 20 210 498
2015 2015-04-21 20 210 339
2015 2015-02-10 20 210 268
2015 2015-02-10 20 210 221
2015 2015-01-20 20 210 491
2015 2015-01-20 20 210 400
2014 2014-10-20 20 210 509
2014 2014-10-20 20 210 320
2014 2014-10-20 20 210 472
2014 2014-10-20 20 210 238

strontium

Year Test Date MRL HRL Test Result
2015 2015-07-14 0.3 1500 1570
2015 2015-07-14 0.3 1500 1570
2015 2015-07-14 0.3 1500 1570
2015 2015-07-14 0.3 1500 1590
2015 2015-04-21 0.3 1500 2060
2015 2015-04-21 0.3 1500 1900
2015 2015-04-21 0.3 1500 1900
2015 2015-04-21 0.3 1500 1860
2015 2015-02-10 0.3 1500 2370
2015 2015-02-10 0.3 1500 2300
2015 2015-01-20 0.3 1500 1730
2015 2015-01-20 0.3 1500 1700
2014 2014-10-20 0.3 1500 1280
2014 2014-10-20 0.3 1500 1200
2014 2014-10-20 0.3 1500 1260
2014 2014-10-20 0.3 1500 1180

Other Water Contaminants Tested


The following contaminants were tested and within national EPA guidelines.

Contaminant MRL HRL Avg Result
chromium 0.2 100 0.1571 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.2 100 0.248
2015 2015-07-14 0.2 100 0.213
2015 2015-07-14 0.2 100 < 0.2
2015 2015-07-14 0.2 100 < 0.2
2015 2015-04-21 0.2 100 0.266
2015 2015-04-21 0.2 100 1.11
2015 2015-04-21 0.2 100 < 0.2
2015 2015-04-21 0.2 100 0.224
2015 2015-02-10 0.2 100 0.239
2015 2015-02-10 0.2 100 0.213
2015 2015-01-20 0.2 100 < 0.2
2015 2015-01-20 0.2 100 < 0.2
2014 2014-10-20 0.2 100 < 0.2
2014 2014-10-20 0.2 100 < 0.2
2014 2014-10-20 0.2 100 < 0.2
2014 2014-10-20 0.2 100 < 0.2
chromium-6 0.03 0 0.0074 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.03 0 0.0626
2015 2015-07-14 0.03 0 < 0.03
2015 2015-07-14 0.03 0 < 0.03
2015 2015-07-14 0.03 0 < 0.03
2015 2015-04-21 0.03 0 0.0558
2015 2015-04-21 0.03 0 < 0.03
2015 2015-04-21 0.03 0 < 0.03
2015 2015-04-21 0.03 0 < 0.03
2015 2015-02-10 0.03 0 < 0.03
2015 2015-02-10 0.03 0 < 0.03
2015 2015-01-20 0.03 0 < 0.03
2015 2015-01-20 0.03 0 < 0.03
2014 2014-10-20 0.03 0 < 0.03
2014 2014-10-20 0.03 0 < 0.03
2014 2014-10-20 0.03 0 < 0.03
2014 2014-10-20 0.03 0 < 0.03
cobalt 1 70 < 1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 1 70 < 1
2015 2015-07-14 1 70 < 1
2015 2015-07-14 1 70 < 1
2015 2015-07-14 1 70 < 1
2015 2015-04-21 1 70 < 1
2015 2015-04-21 1 70 < 1
2015 2015-04-21 1 70 < 1
2015 2015-04-21 1 70 < 1
2015 2015-02-10 1 70 < 1
2015 2015-02-10 1 70 < 1
2015 2015-01-20 1 70 < 1
2015 2015-01-20 1 70 < 1
2014 2014-10-20 1 70 < 1
2014 2014-10-20 1 70 < 1
2014 2014-10-20 1 70 < 1
2014 2014-10-20 1 70 < 1
molybdenum 1 40 9.0638 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 1 40 9.4
2015 2015-07-14 1 40 9.45
2015 2015-07-14 1 40 9.39
2015 2015-07-14 1 40 4.98
2015 2015-04-21 1 40 12.9
2015 2015-04-21 1 40 9.38
2015 2015-04-21 1 40 12.3
2015 2015-04-21 1 40 6.65
2015 2015-02-10 1 40 10.1
2015 2015-02-10 1 40 9.61
2015 2015-01-20 1 40 10.2
2015 2015-01-20 1 40 9.4
2014 2014-10-20 1 40 9.82
2014 2014-10-20 1 40 6.13
2014 2014-10-20 1 40 10.2
2014 2014-10-20 1 40 5.11
vanadium 0.2 21 3.9169 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.2 21 4.41
2015 2015-07-14 0.2 21 4.54
2015 2015-07-14 0.2 21 4.8
2015 2015-07-14 0.2 21 3.5
2015 2015-04-21 0.2 21 3.53
2015 2015-04-21 0.2 21 3.3
2015 2015-04-21 0.2 21 3.15
2015 2015-04-21 0.2 21 3.05
2015 2015-02-10 0.2 21 4.17
2015 2015-02-10 0.2 21 3.78
2015 2015-01-20 0.2 21 2.92
2015 2015-01-20 0.2 21 3.21
2014 2014-10-20 0.2 21 4.45
2014 2014-10-20 0.2 21 4.63
2014 2014-10-20 0.2 21 4.52
2014 2014-10-20 0.2 21 4.71
1,1-dichloroethane 0.03 6.14 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.03 6.139999866485596 < 0.03
2015 2015-07-14 0.03 6.139999866485596 < 0.03
2015 2015-04-21 0.03 6.139999866485596 < 0.03
2015 2015-04-21 0.03 6.139999866485596 < 0.03
2015 2015-02-10 0.03 6.139999866485596 < 0.03
2015 2015-01-20 0.03 6.139999866485596 < 0.03
2014 2014-10-20 0.03 6.139999866485596 < 0.03
2014 2014-10-20 0.03 6.139999866485596 < 0.03
1,2,3-trichloropropane 0.03 0.0004 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.03 0.00039999998989515007 < 0.03
2015 2015-07-14 0.03 0.00039999998989515007 < 0.03
2015 2015-04-21 0.03 0.00039999998989515007 < 0.03
2015 2015-04-21 0.03 0.00039999998989515007 < 0.03
2015 2015-02-10 0.03 0.00039999998989515007 < 0.03
2015 2015-01-20 0.03 0.00039999998989515007 < 0.03
2014 2014-10-20 0.03 0.00039999998989515007 < 0.03
2014 2014-10-20 0.03 0.00039999998989515007 < 0.03
1,3-butadiene 0.1 0.0103 < 0.1 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.1 0.010300000198185444 < 0.1
2015 2015-07-14 0.1 0.010300000198185444 < 0.1
2015 2015-04-21 0.1 0.010300000198185444 < 0.1
2015 2015-04-21 0.1 0.010300000198185444 < 0.1
2015 2015-02-10 0.1 0.010300000198185444 < 0.1
2015 2015-01-20 0.1 0.010300000198185444 < 0.1
2014 2014-10-20 0.1 0.010300000198185444 < 0.1
2014 2014-10-20 0.1 0.010300000198185444 < 0.1
1,4-dioxane 0.07 0.35 0.047 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-29 0.07 0.3499999940395355 0.163
2015 2015-07-14 0.07 0.3499999940395355 0.213
2015 2015-04-29 0.07 0.3499999940395355 < 0.07
2015 2015-04-21 0.07 0.3499999940395355 < 0.07
2015 2015-02-10 0.07 0.3499999940395355 < 0.07
2015 2015-01-20 0.07 0.3499999940395355 < 0.07
2014 2014-10-20 0.07 0.3499999940395355 < 0.07
2014 2014-10-20 0.07 0.3499999940395355 < 0.07
17-alpha-ethynylestradiol 0.0009 0.035 < 0.0009 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.0009 0.03500000014901161 < 0.0009
2015 2015-07-14 0.0009 0.03500000014901161 < 0.0009
2015 2015-04-21 0.0009 0.03500000014901161 < 0.0009
2015 2015-04-21 0.0009 0.03500000014901161 < 0.0009
2015 2015-02-10 0.0009 0.03500000014901161 < 0.0009
2015 2015-01-20 0.0009 0.03500000014901161 < 0.0009
2014 2014-10-20 0.0009 0.03500000014901161 < 0.0009
2014 2014-10-20 0.0009 0.03500000014901161 < 0.0009
17-beta-estradiol 0.0004 0.0009 < 0.0004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.0004 0.0008999999845400453 < 0.0004
2015 2015-07-14 0.0004 0.0008999999845400453 < 0.0004
2015 2015-04-21 0.0004 0.0008999999845400453 < 0.0004
2015 2015-04-21 0.0004 0.0008999999845400453 < 0.0004
2015 2015-02-10 0.0004 0.0008999999845400453 < 0.0004
2015 2015-01-20 0.0004 0.0008999999845400453 < 0.0004
2014 2014-10-20 0.0004 0.0008999999845400453 < 0.0004
2014 2014-10-20 0.0004 0.0008999999845400453 < 0.0004
4-androstene-3,17-dione 0.0003 0 < 0.0003 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.0003 0 < 0.0003
2015 2015-07-14 0.0003 0 < 0.0003
2015 2015-04-21 0.0003 0 < 0.0003
2015 2015-04-21 0.0003 0 < 0.0003
2015 2015-02-10 0.0003 0 < 0.0003
2015 2015-01-20 0.0003 0 < 0.0003
2014 2014-10-20 0.0003 0 < 0.0003
2014 2014-10-20 0.0003 0 < 0.0003
bromomethane 0.2 140 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.2 140 < 0.2
2015 2015-07-14 0.2 140 < 0.2
2015 2015-04-21 0.2 140 < 0.2
2015 2015-04-21 0.2 140 < 0.2
2015 2015-02-10 0.2 140 < 0.2
2015 2015-01-20 0.2 140 < 0.2
2014 2014-10-20 0.2 140 < 0.2
2014 2014-10-20 0.2 140 < 0.2
chloromethane 0.2 2.69 < 0.2 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.2 2.690000057220459 < 0.2
2015 2015-07-14 0.2 2.690000057220459 < 0.2
2015 2015-04-21 0.2 2.690000057220459 < 0.2
2015 2015-04-21 0.2 2.690000057220459 < 0.2
2015 2015-02-10 0.2 2.690000057220459 < 0.2
2015 2015-01-20 0.2 2.690000057220459 < 0.2
2014 2014-10-20 0.2 2.690000057220459 < 0.2
2014 2014-10-20 0.2 2.690000057220459 < 0.2
equilin 0.004 0.35 < 0.004 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.004 0.3499999940395355 < 0.004
2015 2015-07-14 0.004 0.3499999940395355 < 0.004
2015 2015-04-21 0.004 0.3499999940395355 < 0.004
2015 2015-04-21 0.004 0.3499999940395355 < 0.004
2015 2015-02-10 0.004 0.3499999940395355 < 0.004
2015 2015-01-20 0.004 0.3499999940395355 < 0.004
2014 2014-10-20 0.004 0.3499999940395355 < 0.004
2014 2014-10-20 0.004 0.3499999940395355 < 0.004
estriol 0.0008 0.35 < 0.0008 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.0008 0.3499999940395355 < 0.0008
2015 2015-07-14 0.0008 0.3499999940395355 < 0.0008
2015 2015-04-21 0.0008 0.3499999940395355 < 0.0008
2015 2015-04-21 0.0008 0.3499999940395355 < 0.0008
2015 2015-02-10 0.0008 0.3499999940395355 < 0.0008
2015 2015-01-20 0.0008 0.3499999940395355 < 0.0008
2014 2014-10-20 0.0008 0.3499999940395355 < 0.0008
2014 2014-10-20 0.0008 0.3499999940395355 < 0.0008
estrone 0.002 0.35 < 0.002 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.002 0.3499999940395355 < 0.002
2015 2015-07-14 0.002 0.3499999940395355 < 0.002
2015 2015-04-21 0.002 0.3499999940395355 < 0.002
2015 2015-04-21 0.002 0.3499999940395355 < 0.002
2015 2015-02-10 0.002 0.3499999940395355 < 0.002
2015 2015-01-20 0.002 0.3499999940395355 < 0.002
2014 2014-10-20 0.002 0.3499999940395355 < 0.002
2014 2014-10-20 0.002 0.3499999940395355 < 0.002
Halon 1011 0.06 90 0.0082 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.06 90 < 0.06
2015 2015-07-14 0.06 90 < 0.06
2015 2015-04-21 0.06 90 < 0.06
2015 2015-04-21 0.06 90 0.0652
2015 2015-02-10 0.06 90 < 0.06
2015 2015-01-20 0.06 90 < 0.06
2014 2014-10-20 0.06 90 < 0.06
2014 2014-10-20 0.06 90 < 0.06
HCFC-22 0.08 0 < 0.08 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.08 0 < 0.08
2015 2015-07-14 0.08 0 < 0.08
2015 2015-04-21 0.08 0 < 0.08
2015 2015-04-21 0.08 0 < 0.08
2015 2015-02-10 0.08 0 < 0.08
2015 2015-01-20 0.08 0 < 0.08
2014 2014-10-20 0.08 0 < 0.08
2014 2014-10-20 0.08 0 < 0.08
PFBS 0.09 0 < 0.09 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.09 0 < 0.09
2015 2015-07-14 0.09 0 < 0.09
2015 2015-04-21 0.09 0 < 0.09
2015 2015-04-21 0.09 0 < 0.09
2015 2015-02-10 0.09 0 < 0.09
2015 2015-01-20 0.09 0 < 0.09
2014 2014-10-20 0.09 0 < 0.09
2014 2014-10-20 0.09 0 < 0.09
PFHpA 0.01 0 < 0.01 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.01 0 < 0.01
2015 2015-07-14 0.01 0 < 0.01
2015 2015-04-21 0.01 0 < 0.01
2015 2015-04-21 0.01 0 < 0.01
2015 2015-02-10 0.01 0 < 0.01
2015 2015-01-20 0.01 0 < 0.01
2014 2014-10-20 0.01 0 < 0.01
2014 2014-10-20 0.01 0 < 0.01
PFHxS 0.03 0 < 0.03 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.03 0 < 0.03
2015 2015-07-14 0.03 0 < 0.03
2015 2015-04-21 0.03 0 < 0.03
2015 2015-04-21 0.03 0 < 0.03
2015 2015-02-10 0.03 0 < 0.03
2015 2015-01-20 0.03 0 < 0.03
2014 2014-10-20 0.03 0 < 0.03
2014 2014-10-20 0.03 0 < 0.03
PFNA 0.02 0 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.02 0 < 0.02
2015 2015-07-14 0.02 0 < 0.02
2015 2015-04-21 0.02 0 < 0.02
2015 2015-04-21 0.02 0 < 0.02
2015 2015-02-10 0.02 0 < 0.02
2015 2015-01-20 0.02 0 < 0.02
2014 2014-10-20 0.02 0 < 0.02
2014 2014-10-20 0.02 0 < 0.02
PFOA 0.02 0.07 < 0.02 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.02 0.07000000029802322 < 0.02
2015 2015-07-14 0.02 0.07000000029802322 < 0.02
2015 2015-04-21 0.02 0.07000000029802322 < 0.02
2015 2015-04-21 0.02 0.07000000029802322 < 0.02
2015 2015-02-10 0.02 0.07000000029802322 < 0.02
2015 2015-01-20 0.02 0.07000000029802322 < 0.02
2014 2014-10-20 0.02 0.07000000029802322 < 0.02
2014 2014-10-20 0.02 0.07000000029802322 < 0.02
PFOS 0.04 0.07 < 0.04 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.04 0.07000000029802322 < 0.04
2015 2015-07-14 0.04 0.07000000029802322 < 0.04
2015 2015-04-21 0.04 0.07000000029802322 < 0.04
2015 2015-04-21 0.04 0.07000000029802322 < 0.04
2015 2015-02-10 0.04 0.07000000029802322 < 0.04
2015 2015-01-20 0.04 0.07000000029802322 < 0.04
2014 2014-10-20 0.04 0.07000000029802322 < 0.04
2014 2014-10-20 0.04 0.07000000029802322 < 0.04
testosterone 0.0001 0 < 0.0001 [+] Expand Test Data
Year Test Date MRL HRL Test Result
2015 2015-07-14 0.0001 0 < 0.0001
2015 2015-07-14 0.0001 0 < 0.0001
2015 2015-04-21 0.0001 0 < 0.0001
2015 2015-04-21 0.0001 0 < 0.0001
2015 2015-02-10 0.0001 0 < 0.0001
2015 2015-01-20 0.0001 0 < 0.0001
2014 2014-10-20 0.0001 0 < 0.0001
2014 2014-10-20 0.0001 0 < 0.0001

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
TX91770 lead 2013-01-01 2015-12-31 0.0017mg/L
TX68235 lead 2010-01-01 2012-12-31 0.00177mg/L

Violations


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

Compliance Dates Rule Violation Type Contaminant Name Status
2012-04-01 - 2012-04-30 Stage 1 Disinfectants and Disinfection Byproducts Rule Monitoring and Reporting (DBP) Chlorite Returned to Compliance
2006-07-01 - 2006-07-31 Long Term 1 Enhanced Surface Water Treatment Rule Monitoring, Turbidity (Enhanced SWTR) Interim Enhanced Surfsce Water Treatment Rule Returned to Compliance

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.