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Tap water quality report

Starr Wsc

EPA monitoring tested this supplier for 79 contaminants and detected 20. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

79
contaminants tested
20
detected
3,100
people served
5
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
Ground water
Ownership
Local government
Counties served
Grayson

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

5
health-based violations
59
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Archived 2005-04-01 → 2005-04-30
MCL Health-based Archived 2005-04-01 → 2005-04-30
MCL Health-based Archived 1983-04-26 → 1984-04-25
MCL Health-based Archived 1980-06-16 → 1981-06-15
MCL Health-based Archived 1980-06-16 → 1980-07-15
MR Monitoring Resolved 2015-12-30
MR Monitoring Resolved 2015-12-30
MR Monitoring Resolved 2007-01-01 → 2007-03-31
MR Monitoring Resolved 2007-01-01 → 2007-03-31
MR Monitoring Resolved 2007-01-01 → 2007-03-31

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Nitrate
66.25 µg/L 0.7%
of the EPA limit 10000 µg/L
worst single sample: 170 µg/L
64/64 SYR4 2012–2019
Copper
140 µg/L 11%
of the EPA limit 1300 µg/L
worst single sample: 250 µg/L
54/54 SYR4 2015–2018
Bromoform
9.36 µg/L
No EPA limit set
worst single sample: 10.9 µg/L
33/34 SYR4 2012–2019
Dibromochloromethane
3.884 µg/L
No EPA limit set
worst single sample: 4.81 µg/L
25/34 SYR4 2012–2019
Nitrate-Nitrite
52.1 µg/L 0.5%
of the EPA limit 10000 µg/L
worst single sample: 56.5 µg/L
12/12 SYR4 2012–2015
TTHM
14.435 µg/L 18%
of the EPA limit 80 µg/L
worst single sample: 16.1 µg/L
10/11 SYR4 2013–2019
Fluoride
1910 µg/L 48%
of the EPA limit 4000 µg/L
worst single sample: 1970 µg/L
9/9 SYR4 2013–2019
Barium
26.65 µg/L 1.3%
of the EPA limit 2000 µg/L
worst single sample: 27 µg/L
8/8 SYR4 2015–2018
Lead
11.795 µg/L 79%
of the EPA limit 15 µg/L
worst single sample: 14 µg/L
8/54 SYR4 2015–2018
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 7/7 LCR 2024
Chromium
4.075 µg/L 4.1%
of the EPA limit 100 µg/L
worst single sample: 4.1 µg/L
6/8 SYR4 2015–2018
Total Haloacetic Acids (HAA5)
1.3 µg/L 2.2%
of the EPA limit 60 µg/L
 5/10 SYR4 2013–2019
Arsenic
2.555 µg/L 26%
of the EPA limit 10 µg/L
worst single sample: 2.6 µg/L
4/8 SYR4 2015–2018
Dibromoacetic Acid
1.3 µg/L
No EPA limit set
 4/10 SYR4 2013–2019
Gross Alpha, Excl. Radon And U
7.62 pCi/L 51%
of the EPA limit 15 pCi/L
worst single sample: 7.9 pCi/L
3/4 SYR4 2015
Bromodichloromethane
1.0975 µg/L
No EPA limit set
worst single sample: 1.1 µg/L
2/34 SYR4 2012–2019
Combined Radium (-226 And -228)
0.6570 pCi/L 13%
of the EPA limit 5 pCi/L
worst single sample: 0.6600 pCi/L
2/3 SYR4 2015
Carbon Tetrachloride
2.83 µg/L 57%
of the EPA limit 5 µg/L
 1/24 SYR4 2012–2019
Monochloroacetic Acid
1.2 µg/L
No EPA limit set
 1/10 SYR4 2013–2019
Selenium
1.3 µg/L 2.6%
of the EPA limit 50 µg/L
 1/8 SYR4 2015–2018
59 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranChlordaneChloroformCombined UraniumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDichloroacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneGross Beta Particle ActivityHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidNitriteOxamylPentachlorophenolPicloramSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroacetic AcidTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
SMITH, HOWARD

Frequently asked questions about Starr Wsc

Is Starr Wsc tap water safe to drink?

EPA monitoring detected 20 contaminants in Starr Wsc's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Starr Wsc's water?

EPA monitoring detected Nitrate, Copper, Bromoform, Dibromochloromethane, Nitrate-Nitrite, and others. The full list with the level and data source for each is above.

How many people does Starr Wsc serve?

Starr Wsc reports serving 3,100 people in Texas, per its EPA record.

Has Starr Wsc had any water quality violations?

The EPA has 59 violations on file for Starr Wsc, of which 5 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.