Active hazard footprint
0 active alerts
No NWS-driven alerts active in the cached water-summary feed. Drought + precipitation context land once those snapshots are committed.
No sewer overflow rows in the 30-day window.
County workspace
Brewster County
brewster-county
Brewster County county intelligence
Cross-source county ranking context from the Atlas county explorer service, with committed Wave 1 analytics overlays to help answer what changed and why.
Saving to the shared watchlist workspace.
Common county terms
Texas Water Development Board (TWDB)Hydrologic Unit Code (HUC)Public Water System (PWS)
53.03
Composite score
110
Composite rank
4
Highlight lanes
#225
Wave 1 risk rank
Investigation context
Weather + hydrology context for Brewster County
Composite operating context — active hazards, hydrologic features, surface-water condition, and infrastructure footprint — pulled from cached snapshots only.
Hydrology features
6 TWDB features
EDWARDS-TRINITY · Colorado · Rio Grande · Maravillas
1 Major Aquifers · 2 Major River Basins · 3 HUC 8 Hydrologic Units
Surface water condition
No segments cached
No TCEQ-classified surface segments in this county for the cached assessment year.
Drinking-water exposure
1 SDWIS violations
1 public water system with cached health-based violations since 2023-04-01. 45 people served by those systems.
Top PWS: MCELROY RANCH WATER SYSTEM (1 viol.) · Top contaminant code: 5200
Stream gauge coverage
0 active gauges
No active stream gauges in the cached water-summary feed. Hydrologic stress signal lands once gauges fold in.
USGS streamflow anomaly + drought class join in next-up.
Boil-water proxy · microbial rule
No microbial violations cached
No SDWIS rule-group 100 microbial violations cached for this county. Tier-1 boil-water-equivalent events activate this lane when they post.
Treatment stress · E2 disinfectant
No disinfectant violations cached
No cached SDWIS rule-group 200 disinfectant violations in this county. Treatment-stress signal activates as new D/DBP rule violations post.
Analytics snapshot
Risk trend from committed snapshots
Uses the committed county-history artifact only. Atlas does not backfill imaginary periods; if a previous snapshot is missing, this panel says so.
Risk scorePressure score
Risk score
0 · No change
Pressure score
0 · No change
Systems / violations
1 flagged systems shown
Pressure quadrant
Lower pressure + lower risk
Interpretation
What changed and why
Brewster County is currently driven most by permits in the county explorer stack, while the committed analytics lane classifies it as lower pressure + lower risk.
Across the latest two committed snapshots, both the county risk score and pressure score are unchanged, so the analytical read is about persistent position rather than a new spike. The county is steady across the latest committed comparison window.
Lower pressure + lower risk
Both axes sit below the current statewide medians in the committed scatter snapshot.
Grounding and caveats
County analytics are derived from committed SDWIS, ACS county population, surface-water-quality, and TWDB hydrology snapshots. History appends one real snapshot per run and never fabricates prior periods.
- • countyRiskScore is the statewide 0-100 normalization of summed SDWIS DWRS raw scores per county.
- • pressureScore is the statewide 0-100 normalization of impaired segment counts per 100k residents when population is available; otherwise it falls back to raw impaired segment count.
- • Rank deltas compare the newest county-history snapshot against the immediately preceding real snapshot.
- • Both axes are normalized to a 0-100 statewide range for stable chart consumption.
Driver decomposition
Top explorer lanes ranked against the statewide county stack. Percentile and contribution values are derived from the reusable Wave 1 analytics spine.
Permits
Rank #74 · 71.81 percentile
Value 11
17.95 pts into composite
33.85% of the current composite score from this lane.
County returns
Rank #93 · 64.48 percentile
Value 667292.55
16.12 pts into composite
30.40% of the current composite score from this lane.
Water districts
Rank #100 · 61.78 percentile
Value 2
15.45 pts into composite
29.13% of the current composite score from this lane.
CPI investigations
Rank #190 · 27.03 percentile
Value 409
6.76 pts into composite
12.75% of the current composite score from this lane.
Top systems behind the county signal
When county-history carries system-level highlights, Atlas surfaces the systems contributing the most to the latest committed risk snapshot.
MCELROY RANCH WATER SYSTEM
PWS TX0220040
Risk contribution 0
1 violations in the cached snapshot
Operator lane
Operators visible in this county snapshot
Ranked only from the current permittee and CID applicant snapshot. Atlas links out where operator presence is visible; it does not invent a deeper hierarchy or historical market share.
1 visible operators
LAJITAS MUNICIPAL SERVICES COMPANY LLC
2 permits · 0 cases · 0 procedural pressure in Brewster County
Statewide footprint: 1 counties
Saving to the shared watchlist workspace.
Current record mix: 0 hearing requests · 0 public meeting requests · 0 comments across visible cases.
County ↔ operator navigation
Move from county stress to named operators
County rankings show where signal concentrates. Operator pages show which named permittees and applicants are currently visible inside that signal.
The strongest visible crosslinks here come from LAJITAS MUNICIPAL SERVICES COMPANY LLC. Use those pages to inspect county concentration, case posture, and permit roster.
- • County page: risk, hydrology, and statewide rank context.
- • Operator page: county footprint, open CID case posture, and pending permit roster.
- • Permit view: county-scoped transaction list for the current public snapshot.
Highlights
Top-ranked source lanes per the cached county overview.
Permits
Rank 74 · Value 11
County returns
Rank 93 · Value 667292.55
Water districts
Rank 100 · Value 2
CPI investigations
Rank 190 · Value 409
Hydrology and surface-water condition fold into the investigation context block above; Texas Water Development Board (TWDB) + Hydrologic Unit Code (HUC) features are shared with the water county profile.