TapScore

CRYSTAL CLEAR SUD Water Quality Report

Population

20,766

people served

Water Source

🌊 Surface

rivers, lakes, reservoirs

National Rank

Top 43%

of 49,184 US systems

5-Year Record

✅ Clean

no violations

A

Safe

Safety Grade

0 violations in the past 5 years, including 93 health-based

System Details

PWSID
TX0940015
Population Served
20,766
Water Source
Surface Water
Owner
Local Government
State
Texas
EPA Region
6

Contaminants of Concern

ContaminantStatusViolations
Contaminant 0300⚠ Monitoring/Reporting74
Contaminant 0800✕ Health-Based78
Contaminant 0200✕ Health-Based3
Contaminant 5000⚠ Monitoring/Reporting4
Contaminant 8000⚠ Monitoring/Reporting2
Total Coliform⚠ Monitoring/Reporting2
Contaminant 7500⚠ Monitoring/Reporting2
Total Trihalomethanes (TTHMs)✕ Health-Based6
Haloacetic Acids (HAA5)✕ Health-Based6
Contaminant 1002⚠ Monitoring/Reporting2
Arsenic⚠ Monitoring/Reporting2
Barium⚠ Monitoring/Reporting2
Cadmium⚠ Monitoring/Reporting2
Chromium⚠ Monitoring/Reporting2
Mercury⚠ Monitoring/Reporting2
Contaminant 1032⚠ Monitoring/Reporting2
Selenium⚠ Monitoring/Reporting2
Contaminant 1050⚠ Monitoring/Reporting2
Beryllium⚠ Monitoring/Reporting2
Contaminant 1075⚠ Monitoring/Reporting2
Contaminant 1085⚠ Monitoring/Reporting2
Contaminant 1095⚠ Monitoring/Reporting2
Thallium⚠ Monitoring/Reporting2
Contaminant 1017⚠ Monitoring/Reporting2
Fluoride⚠ Monitoring/Reporting2
Contaminant 1055⚠ Monitoring/Reporting2
Contaminant 1930⚠ Monitoring/Reporting2
Contaminant 2005⚠ Monitoring/Reporting2
Contaminant 2010⚠ Monitoring/Reporting2
Contaminant 2015⚠ Monitoring/Reporting2
Contaminant 2020⚠ Monitoring/Reporting2
Contaminant 2035⚠ Monitoring/Reporting2
Contaminant 2037⚠ Monitoring/Reporting2
Contaminant 2039⚠ Monitoring/Reporting2
Contaminant 2042⚠ Monitoring/Reporting2
Atrazine⚠ Monitoring/Reporting2
Benzene⚠ Monitoring/Reporting2
Contaminant 2065⚠ Monitoring/Reporting2
Contaminant 2067⚠ Monitoring/Reporting2
Contaminant 2274⚠ Monitoring/Reporting2
Contaminant 2306⚠ Monitoring/Reporting2
Contaminant 2326⚠ Monitoring/Reporting2
Contaminant 2959⚠ Monitoring/Reporting2
Contaminant 2378⚠ Monitoring/Reporting2
Vinyl Chloride⚠ Monitoring/Reporting2
Contaminant 2955⚠ Monitoring/Reporting2
Trichloroethylene (TCE)⚠ Monitoring/Reporting2
Contaminant 2968⚠ Monitoring/Reporting2
Tetrachloroethylene (PCE)⚠ Monitoring/Reporting2
Contaminant 2976⚠ Monitoring/Reporting2
Contaminant 2977⚠ Monitoring/Reporting2
Contaminant 2979⚠ Monitoring/Reporting2
Contaminant 2980⚠ Monitoring/Reporting2
Contaminant 2981⚠ Monitoring/Reporting2
Contaminant 2982⚠ Monitoring/Reporting2
Contaminant 2983⚠ Monitoring/Reporting2
Chloramine⚠ Monitoring/Reporting2
Contaminant 2985⚠ Monitoring/Reporting2
Contaminant 2987⚠ Monitoring/Reporting2
Contaminant 2989⚠ Monitoring/Reporting2
Contaminant 2990⚠ Monitoring/Reporting2
Contaminant 2991⚠ Monitoring/Reporting2
Contaminant 2992⚠ Monitoring/Reporting2
Contaminant 2996⚠ Monitoring/Reporting2

Violation History

2019
126
2017
4
2015
22
2014
48
2013
48
2012
39

Total violations on record: 287

Service Area

Cities Served

SAN MARCOS

ZIP Codes Served

78666-2100

Recommended Water Filters

Based on contaminants detected in this water system:

Reverse Osmosis System

Removes up to 99% of contaminants including PFAS, lead, arsenic, and nitrates

Removes: Arsenic, Fluoride, Cadmium, Chromium, Mercury, Selenium, Barium

$150–$400

Activated Carbon Filter

Effective for chlorine, THMs, pesticides, and taste/odor improvement

Removes: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5), Atrazine, Benzene, Trichloroethylene (TCE), Tetrachloroethylene (PCE), Vinyl Chloride

$20–$100

Water Distiller

Removes heavy metals, minerals, and most contaminants through evaporation

Removes: Arsenic, Mercury, Cadmium, Fluoride

$80–$200

UV Water Purifier

Kills bacteria and viruses without chemicals

Removes: Total Coliform

$50–$150

How does this compare?

This systemNational average
Grade A
Avg: B-C
287violations total

1025% of national average

National avg: ~28 per system

📍 Mid-to-large system — serves 3× the national average.