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Tap water quality report

City of Marion

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
1,971
people served
4
health-based violations
Texas rankingsLead in TexasPFAS in Texas
Water source
SWP
Ownership
Local government
Counties served
Guadalupe

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.

4
health-based violations
36
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2019-01-01 → 2019-03-31
MCL Health-based Resolved 2019-01-01 → 2019-03-31
MCL Health-based Resolved 2019-01-01 → 2019-03-31
MCL Health-based Resolved 2019-01-01 → 2019-03-31
RPT Monitoring Unaddressed 2025-07-02
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30
MR Monitoring Resolved 2025-07-01 → 2025-09-30
Other Monitoring Resolved 2021-10-02
Other Monitoring Resolved 2021-10-02

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Bromodichloromethane
39.1 µg/L
No EPA limit set
 52/52 SYR4 2012–2019
Dibromochloromethane
27.3 µg/L
No EPA limit set
 52/52 SYR4 2012–2019
Bromoform
12.5 µg/L
No EPA limit set
 50/52 SYR4 2012–2019
Chloroform
45.9 µg/L
No EPA limit set
 48/52 SYR4 2012–2019
TTHM
104 µg/L 130%
of the EPA limit, in the worst sample — 80 µg/L
 47/47 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
74.2 µg/L 124%
of the EPA limit, in the worst sample — 60 µg/L
 47/47 SYR4 2012–2019
Dibromoacetic Acid
10 µg/L
No EPA limit set
 45/47 SYR4 2012–2019
Dichloroacetic Acid
46.3 µg/L
No EPA limit set
 43/47 SYR4 2012–2019
Copper
373 µg/L 29%
of the EPA limit 1300 µg/L
 32/33 SYR4 2015–2019
Nitrate
1990 µg/L 20%
of the EPA limit 10000 µg/L
 32/32 SYR4 2012–2019
Trichloroacetic Acid
12.5 µg/L
No EPA limit set
 27/47 SYR4 2012–2019
Lead
14.1 µg/L 94%
of the EPA limit 15 µg/L
 23/33 SYR4 2015–2019
Monochloroacetic Acid
11.8 µg/L
No EPA limit set
 12/47 SYR4 2012–2019
Lead
0.0050 mg/L 33%
of the EPA limit 0.0150 mg/L
 8/8 LCR 2025
Monobromoacetic Acid
4.7 µg/L
No EPA limit set
 6/47 SYR4 2012–2019
Nitrate-Nitrite
1910 µg/L 19%
of the EPA limit 10000 µg/L
 6/6 SYR4 2012–2015
Fluoride
240 µg/L 6%
of the EPA limit 4000 µg/L
 3/3 SYR4 2012–2018
Barium
50.4 µg/L 2.5%
of the EPA limit 2000 µg/L
 2/2 SYR4 2015–2018
Combined Radium (-226 And -228)
1.5 pCi/L 30%
of the EPA limit 5 pCi/L
 1/1 SYR4 2015
Dalapon
1.2 µg/L 0.6%
of the EPA limit 200 µg/L
 1/47 SYR4 2012–2019
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, TotalArsenicAsbestosAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumCombined UraniumDichloromethaneDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinEthylbenzeneGross Alpha, Excl. Radon And UGross Beta Particle ActivityHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
LOYOLA, DANIEL, H
Phone
830-914-2391
Email
Mayor@CityofMarionTx.org

Frequently asked questions about City of Marion

Is City of Marion tap water safe to drink?

EPA monitoring detected 20 contaminants in City of Marion'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 City of Marion's water?

EPA monitoring detected Bromodichloromethane, Dibromochloromethane, Bromoform, Chloroform, TTHM, and others. The full list with the level and data source for each is above.

How many people does City of Marion serve?

City of Marion reports serving 1,971 people in Texas, per its EPA record.

Has City of Marion had any water quality violations?

The EPA has 36 violations on file for City of Marion, of which 4 are health-based (a contaminant limit or required treatment was breached) and 1 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.