City of Leon Valley (TX) Water Quality City of Leon Valley is a large public water system in EPA region 6 that provides tap water for the 78238 zip codes. It has 5 facilities where the water supply was tested for 50 chemical contaminants that impact tap water quality and human health.
The maximum reported level of HAA5 (five regulated haloacetic acids) was 2.506 µg/L. The maximum reported level of Manganese was 8.8 µg/L. There were 2 contamintants found in the City of Leon Valley water supply at levels that were above the minimum reporting level.
Contaminants Jump To Contaminant 1-butanol (3) 11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (4) 1H,1H,2H,2H-perfluorodecane sulfonic acid (4) 1H,1H,2H,2H-perfluorohexane sulfonic acid (4) 1H,1H,2H,2H-perfluorooctane sulfonic acid (4) 2-methoxyethanol (3) 2-propen-1-ol (Allyl Alcohol) (3) 4,8-dioxa-3H-perfluorononanoic acid (4) 9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (4) alpha-hexachlorocyclohexane (3) Butylated Hydroxyanisole (3) chlorpyrifos (3) dimethipin (3) ethoprop (3) Germanium (3) HAA5 (five regulated haloacetic acids) (4) HAA6Br (six brominated haloacetic acids) (4) HAA9 (nine haloacetic acids) (4) hexafluoropropylene oxide dimer acid (GenX) (4) lithium (4) Manganese (3) N-ethyl perfluorooctanesulfonamidoacetic acid (4) N-methyl perfluorooctanesulfonamidoacetic acid (4) nonafluoro-3,6-dioxaheptanoic acid (4) o-toluidine (3) oxyfluorfen (3) perfluoro(2-ethoxyethane)sulfonic acid (4) perfluoro-3-methoxypropanoic acid (4) perfluoro-4-methoxybutanoic acid (4) perfluorobutanesulfonic acid (4) perfluorobutanoic acid (4) perfluorodecanoic acid (4) perfluorododecanoic acid (4) perfluoroheptanesulfonic acid (4) perfluoroheptanoic acid (4) perfluorohexanesulfonic acid (4) perfluorohexanoic acid (4) perfluorononanoic acid (4) perfluorooctanesulfonic acid (4) perfluorooctanoic acid (4) perfluoropentanesulfonic acid (4) perfluoropentanoic acid (4) perfluorotetradecanoic acid (4) perfluorotridecanoic acid (4) perfluoroundecanoic acid (4) profenofos (3) quinoline (3) tebuconazole (3) Total Permethrin (3) tribufos (3)
Well 3 Entry Point
<2 µg/L
Below Reporting Level
Well 4 Entry Point
<2 µg/L
Below Reporting Level
Well 4 Entry Point
<2 µg/L
Below Reporting Level
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GST
<0.005 µg/L
Below Reporting Level
EXT HB
<0.005 µg/L
Below Reporting Level
GST
<0.005 µg/L
Below Reporting Level
EXT HB
<0.005 µg/L
Below Reporting Level
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GST
<0.005 µg/L
Below Reporting Level
EXT HB
<0.005 µg/L
Below Reporting Level
GST
<0.005 µg/L
Below Reporting Level
EXT HB
<0.005 µg/L
Below Reporting Level
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GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
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GST
<0.005 µg/L
Below Reporting Level
EXT HB
<0.005 µg/L
Below Reporting Level
GST
<0.005 µg/L
Below Reporting Level
EXT HB
<0.005 µg/L
Below Reporting Level
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Well 3 Entry Point
<0.4 µg/L
Below Reporting Level
Well 4 Entry Point
<0.4 µg/L
Below Reporting Level
Well 4 Entry Point
<0.4 µg/L
Below Reporting Level
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Well 3 Entry Point
<0.5 µg/L
Below Reporting Level
Well 4 Entry Point
<0.5 µg/L
Below Reporting Level
Well 4 Entry Point
<0.5 µg/L
Below Reporting Level
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GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
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GST
<0.002 µg/L
Below Reporting Level
EXT HB
<0.002 µg/L
Below Reporting Level
GST
<0.002 µg/L
Below Reporting Level
EXT HB
<0.002 µg/L
Below Reporting Level
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Well 3 Entry Point
<0.01 µg/L
Below Reporting Level
Well 4 Entry Point
<0.01 µg/L
Below Reporting Level
Well 4 Entry Point
<0.01 µg/L
Below Reporting Level
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Well 3 Entry Point
<0.03 µg/L
Below Reporting Level
Well 4 Entry Point
<0.03 µg/L
Below Reporting Level
Well 4 Entry Point
<0.03 µg/L
Below Reporting Level
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Well 3 Entry Point
<0.03 µg/L
Below Reporting Level
Well 4 Entry Point
<0.03 µg/L
Below Reporting Level
Well 4 Entry Point
<0.03 µg/L
Below Reporting Level
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Well 3 Entry Point
<0.2 µg/L
Below Reporting Level
Well 4 Entry Point
<0.2 µg/L
Below Reporting Level
Well 4 Entry Point
<0.2 µg/L
Below Reporting Level
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Well 3 Entry Point
<0.03 µg/L
Below Reporting Level
Well 4 Entry Point
<0.03 µg/L
Below Reporting Level
Well 4 Entry Point
<0.03 µg/L
Below Reporting Level
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Well 3 Entry Point
<0.3 µg/L
Below Reporting Level
Well 4 Entry Point
<0.3 µg/L
Below Reporting Level
Well 4 Entry Point
<0.3 µg/L
Below Reporting Level
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Site 4 Address
1.644 µg/L
Meets Reporting Threshold
Site 2 Address
1.331 µg/L
Meets Reporting Threshold
Site 4 Address
2.506 µg/L
Meets Reporting Threshold
Site 2 Address
0.349 µg/L
Meets Reporting Threshold
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Site 4 Address
2.544 µg/L
Site 4 Address
3.763 µg/L
Site 2 Address
0.349 µg/L
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Site 4 Address
2.968 µg/L
Site 2 Address
2.443 µg/L
Site 4 Address
4.369 µg/L
Site 2 Address
0.349 µg/L
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GST
<0.005 µg/L
Below Reporting Level
EXT HB
<0.005 µg/L
Below Reporting Level
GST
<0.005 µg/L
Below Reporting Level
EXT HB
<0.005 µg/L
Below Reporting Level
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GST
<9 µg/L
Below Reporting Level
EXT HB
<9 µg/L
Below Reporting Level
GST
<9 µg/L
Below Reporting Level
EXT HB
<9 µg/L
Below Reporting Level
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Well 4 Entry Point
8.8 µg/L
Meets Reporting Threshold
Well 3 Entry Point
<0.4 µg/L
Below Reporting Level
Well 4 Entry Point
<0.4 µg/L
Below Reporting Level
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GST
<0.005 µg/L
Below Reporting Level
EXT HB
<0.005 µg/L
Below Reporting Level
GST
<0.005 µg/L
Below Reporting Level
EXT HB
<0.005 µg/L
Below Reporting Level
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GST
<0.006 µg/L
Below Reporting Level
EXT HB
<0.006 µg/L
Below Reporting Level
GST
<0.006 µg/L
Below Reporting Level
EXT HB
<0.006 µg/L
Below Reporting Level
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GST
<0.02 µg/L
Below Reporting Level
EXT HB
<0.02 µg/L
Below Reporting Level
GST
<0.02 µg/L
Below Reporting Level
EXT HB
<0.02 µg/L
Below Reporting Level
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Well 3 Entry Point
<0.007 µg/L
Below Reporting Level
Well 4 Entry Point
<0.007 µg/L
Below Reporting Level
Well 4 Entry Point
<0.007 µg/L
Below Reporting Level
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Well 3 Entry Point
<0.05 µg/L
Below Reporting Level
Well 4 Entry Point
<0.05 µg/L
Below Reporting Level
Well 4 Entry Point
<0.05 µg/L
Below Reporting Level
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GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
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GST
<0.004 µg/L
Below Reporting Level
EXT HB
<0.004 µg/L
Below Reporting Level
GST
<0.004 µg/L
Below Reporting Level
EXT HB
<0.004 µg/L
Below Reporting Level
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GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
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EXT HB
0.0031 µg/L
⚠️ Exceeds Reporting Level of 0.003 µg/L by 0.0001 µg/L
GST
<0.003 µg/L
Below Reporting Level
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
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GST
<0.005 µg/L
Below Reporting Level
EXT HB
<0.005 µg/L
Below Reporting Level
GST
<0.005 µg/L
Below Reporting Level
EXT HB
<0.005 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️ ✔️
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
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GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️ ✔️
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️ ✔️
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️ ✔️
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️ ✔️
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
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GST
<0.004 µg/L
Below Reporting Level
EXT HB
<0.004 µg/L
Below Reporting Level
GST
<0.004 µg/L
Below Reporting Level
EXT HB
<0.004 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️ ✔️
GST
<0.004 µg/L
Below Reporting Level
EXT HB
<0.004 µg/L
Below Reporting Level
GST
<0.004 µg/L
Below Reporting Level
EXT HB
<0.004 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️ ✔️
GST
<0.004 µg/L
Below Reporting Level
EXT HB
<0.004 µg/L
Below Reporting Level
GST
<0.004 µg/L
Below Reporting Level
EXT HB
<0.004 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️ ✔️
GST
<0.004 µg/L
Below Reporting Level
EXT HB
<0.004 µg/L
Below Reporting Level
GST
<0.004 µg/L
Below Reporting Level
EXT HB
<0.004 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️ ✔️
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
GST
<0.003 µg/L
Below Reporting Level
EXT HB
<0.003 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️ ✔️
GST
<0.008 µg/L
Below Reporting Level
EXT HB
<0.008 µg/L
Below Reporting Level
GST
<0.008 µg/L
Below Reporting Level
EXT HB
<0.008 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️ ✔️
GST
<0.007 µg/L
Below Reporting Level
EXT HB
<0.007 µg/L
Below Reporting Level
GST
<0.007 µg/L
Below Reporting Level
EXT HB
<0.007 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️ ✔️
GST
<0.002 µg/L
Below Reporting Level
EXT HB
<0.002 µg/L
Below Reporting Level
GST
<0.002 µg/L
Below Reporting Level
EXT HB
<0.002 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️ ✔️
Well 3 Entry Point
<0.3 µg/L
Below Reporting Level
Well 4 Entry Point
<0.3 µg/L
Below Reporting Level
Well 4 Entry Point
<0.3 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️
Well 3 Entry Point
<0.02 µg/L
Below Reporting Level
Well 4 Entry Point
<0.02 µg/L
Below Reporting Level
Well 4 Entry Point
<0.02 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️
Well 3 Entry Point
<0.2 µg/L
Below Reporting Level
Well 4 Entry Point
<0.2 µg/L
Below Reporting Level
Well 4 Entry Point
<0.2 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️
Well 3 Entry Point
<0.04 µg/L
Below Reporting Level
Well 4 Entry Point
<0.04 µg/L
Below Reporting Level
Well 4 Entry Point
<0.04 µg/L
Below Reporting Level
Previous Next ✔️ ✔️ ✔️
Well 3 Entry Point
<0.07 µg/L
Below Reporting Level
Well 4 Entry Point
<0.07 µg/L
Below Reporting Level
Well 4 Entry Point
<0.07 µg/L
Below Reporting Level
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Sampling Facilities CITY OF LEON VALLEY
Ground Water (GW) GSTEntry Point to the Distribution System (EP)
CITY OF LEON VALLEY
Ground Water (GW) EXT HBEntry Point to the Distribution System (EP)
Well 3
Ground Water (GW) Well 3 Entry PointEntry Point to the Distribution System (EP)
Well 4
Ground Water (GW) Well 4 Entry PointEntry Point to the Distribution System (EP)
Distribution System
Ground Water (GW) Site 2 AddressDistribution System (DS)
Site 4 AddressDistribution System (DS)
FAQ Is City of Leon Valley tap water safe to drink? When was City of Leon Valley last tested for water contamination? The latest water samples were taken on August 13th, 2024.
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