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
Ellis County
ellis-county
Ellis 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)
90.34
Composite score
19
Composite rank
5
Highlight lanes
#159
Wave 1 risk rank
Investigation context
Weather + hydrology context for Ellis County
Composite operating context — active hazards, hydrologic features, surface-water condition, and infrastructure footprint — pulled from cached snapshots only.
Hydrology features
7 TWDB features
CARRIZO · CARRIZO · Brazos · Colorado
3 Major Aquifers · 3 Major River Basins · 2 HUC 8 Hydrologic Units
Surface water condition
0 impaired / 7 segments
0% of cached TCEQ surface segments in this county carry at least one impairment flag.
Basin: Trinity River Basin
Drinking-water exposure
7 SDWIS violations
6 public water systems with cached health-based violations since 2023-04-01. 6,596 people served by those systems.
Top PWS: BUFFALO HILLS WATER SYSTEM (2 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
0.05 · No change
Pressure score
0 · No change
Systems / violations
3 flagged systems shown
Pressure quadrant
Lower pressure + lower risk
Interpretation
What changed and why
Ellis County is currently driven most by sales tax rates 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.
Sales tax rates
Rank #12 · 95.75 percentile
Value 99
19.15 pts into composite
21.20% of the current composite score from this lane.
Water districts
Rank #15 · 94.59 percentile
Value 39
18.92 pts into composite
20.94% of the current composite score from this lane.
Permits
Rank #20 · 92.66 percentile
Value 41
18.53 pts into composite
20.51% of the current composite score from this lane.
CPI investigations
Rank #33 · 87.64 percentile
Value 9126
17.53 pts into composite
19.40% 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.
CITY OF FERRIS
PWS TX0700002
Risk contribution 0.02
1 violations in the cached snapshot
AVALON WSC
PWS TX0700019
Risk contribution 0.01
1 violations in the cached snapshot
BUFFALO HILLS WATER SYSTEM
PWS TX0700070
Risk contribution 0.01
2 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.
5 visible operators
SOUTH CENTRAL WATER COMPANY
3 permits · 0 cases · 0 procedural pressure in Ellis County
Statewide footprint: 11 counties
Saving to the shared watchlist workspace.
Current record mix: 0 hearing requests · 0 public meeting requests · 0 comments across visible cases.
AIRGAS SPECIALTY PRODUCTS INC
1 permits · 0 cases · 0 procedural pressure in Ellis 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.
ALLIANCE LAND & CATTLE LLC;CREEK LAND AND CATTLE LLC;ELLIS AD 1 LLC
1 permits · 0 cases · 0 procedural pressure in Ellis 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.
BUFFALO HILLS DEVELOPMENT LLC
1 permits · 0 cases · 0 procedural pressure in Ellis 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.
LAVON SANDERS DISCHARGE LLC
1 permits · 0 cases · 0 procedural pressure in Ellis County
Statewide footprint: 2 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 SOUTH CENTRAL WATER COMPANY and AIRGAS SPECIALTY PRODUCTS INC. 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.
Sales tax rates
Rank 12 · Value 99
Water districts
Rank 15 · Value 39
Permits
Rank 20 · Value 41
CPI investigations
Rank 33 · Value 9126
County returns
Rank 36 · Value 8829312.75
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.