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Counties → Nebraska

Cass County, Nebraska

SDWIS compliance plate

Sheet NE025 · Cass County 42 sys · 1,450 viol · #1467/3254

VIOL-SEVERE · HEALTH-HIGH · RANK-MID · PHOTO-FINISH · PFAS-HIGH · SRC-GW · SYS-MID · BOOK-FULL

  • VIOL-SEVERE 85.7% flagged
  • HEALTH-HIGH 50.9% health
  • RANK-MID #1467/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-HIGH 50.0% detect
  • SRC-GW GW lead 98%
  • SYS-MID 42 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Stanton County (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Cass County ranks #1,467 of 3,254 counties by people served, and #12 of 93 counties in Nebraska. See methodology · corpus placement.

Cass County standing, lower-flagged corpus third

Flagged-system rate 85.7% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 50.9% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 50.0% is UCMR5 detect rate above the tested-pool upper third (> 33.3%) . Population served ranks #1,467 of 3,254 · #12 of 93 in Nebraska.

Flagged-rate neighbourhood around Cass County

Lowest/highest poles plus in-state counties nearest Cass County on % of SDWIS systems with ≥1 violation. Full ladder: /counties.

0% 20% 40% 60% 80% 100% Kimball · lowest Hall · near Stanton · near Blaine · highest 57.1% 84.6% 85% 85.7% 85.7% 86.5% 100%

Source: EPA SDWIS (county aggregates) As of 2026-05-15

Water Systems

System Name Population Violations PFAS
Plattsmouth, City Of 6,680 3 Detected
Beaver Lake Association Inc 3,144 5 Clean
Cass Co RWD 1 2,958 0 -
Cass Co RWD 2 1,860 21 -
Cass Co Sid 5 - Buccaneer Bay 1,417 19 -
Louisville, City Of 1,301 15 -
Weeping Water, City Of 1,107 35 -
Eagle, Village Of 1,065 40 -
Mahoney State Park - Ng & Pc 1,000 33 -
Omaha Fish and Wildlife Club 850 0 -
Elmwood, Village Of 698 21 -
Otoe Co. RWD #3 - Louisville 630 0 -
Greenwood, Village Of 600 75 -
Murray, Village Of 480 13 -
Cass Co Sid #1 - Lake WA-Con-Da Village 420 113 -
YMCA Camp Kitaki (Non Seasonal) 400 36 -
Murdock, Village Of 275 80 -
Avoca, Village Of 254 38 -
Round the Bend Steakhouse 215 25 -
Union, Village Of 196 68 -
Manley, Village Of 195 69 -
Nehawka, Village Of 175 10 -
Speedee Mart #2722 175 8 -
Alvo, Village Of 142 145 -
Eagle Lake Subdivision 104 20 -
Holling House Nlom 100 8 -
Eagle Way Mhc LLC 99 0 -
Cass Co Sid 7 - Swallow Hills 93 4 -
Middle Island Lake Association 92 198 -
Kzvalve LLC 75 0 -
Raven's Nest 70 4 -
Cubby's Greenwood Truck Plaza 42 52 -
YMCA Camp Kitaki (Seasonal) 40 0 -
Waverly Eastbound Scales on I-80 30 13 -
Pine Grove RV Pk & Campground 25 22 -
Platte Valley Antique Co 25 38 -
Quarry Oaks Golf Course 25 17 -
Lee G Simmons Conservation Park 25 29 -
Waverly Westbound Scales on I-80 25 24 -
Parkers Smokehouse Ashland 25 49 -
North 40 Golf Dba Ashland Golf Club 25 68 -
Platte River Eastbound Rest Area 25 32 -

Compare beyond Nebraska

Lower-flagged peers for Cass County

Cross-state counties nearest Cass County on flagged-system share (85.7%) and cumulative violation count (1,450). In-state neighbours stay on the compliance plate above.

Similar flagged-system rate

Nearest cross-state counties by % of SDWIS systems with at least one violation on record.

4 peers

Similar violation load

Nearest cross-state counties by cumulative SDWIS violation count (all systems in the county).

4 peers

Read our methodology · Check your water system - how this data is sourced, computed, and verified.

Data sourced from EPA SDWIS and UCMR5 PFAS monitoring data. See our methodology for details. Retrieved and formatted by PlainWater

Every figure on PlainWater is rendered directly from EPA SDWIS drinking-water data, no number is typed in by an editor. This page draws directly on EPA SDWIS data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.