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Counties → Michigan

Lenawee County, Michigan

SDWIS compliance plate

Sheet MI091 · Lenawee County 193 sys · 4,463 viol · #671/3254

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

  • VIOL-SEVERE 85.0% flagged
  • HEALTH-MID 32.9% health
  • RANK-UPPER #671/3254
  • PHOTO-FINISH ±0.3 pp
  • PFAS-MID 25.0% detect
  • SRC-GW GW lead 98%
  • SYS-LARGE 193 systems
  • BOOK-FULL 7/7 fields

Nearest flagged-rate peer: Osceola County ( -0.3 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Lenawee County ranks #671 of 3,254 counties by people served, and #20 of 83 counties in Michigan. See methodology · corpus placement.

Lenawee County standing, lower-flagged corpus third

Flagged-system rate 85.0% is at or below the corpus lower third (≤ 92.7% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 32.9% is health-based share above the upper third (> 24.5%) . UCMR5 detect rate 25.0% is UCMR5 detect rate in the tested-pool middle third (≤ 33.3%) . Population served ranks #671 of 3,254 · #20 of 83 in Michigan.

Flagged-rate neighbourhood around Lenawee County

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

0% 20% 40% 60% 80% 100% Oscoda · lowest Ottawa · near Lenawee · this county Menominee · highest 52.9% 83.9% 84.5% 84.7% 85% 85.3% 100%

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

Water Systems

System Name Population Violations PFAS
Adrian 23,663 33 Clean
Tecumseh 8,521 0 Clean
The Groves of Michigan 6,460 15 -
Madison Township 3,480 8 Clean
Blissfield 3,276 59 Detected
Clinton 2,336 95 -
Hudson 2,307 25 -
Morenci 2,220 44 -
Michigan International Speedway 1,000 3 -
Deerfield 943 600 -
Onsted 907 18 -
Ps Food Mart Convenience King #3011 900 10 -
DNR - Hayes State Park 784 8 -
Fairfield Township 717 3 -
Britton 611 48 -
Addison 605 58 -
Wacker Chemical Corporation 600 2 -
Perky Pantry Irish Hills 600 12 -
Cement City Ps Food Mart 600 3 -
Perky Pantry Pentecost 500 0 -
South Shore Water System 488 32 -
Sand Creek Elementary School 470 19 -
Tecumseh South Early Learning Ctr 450 1 -
Sand Creek High School 438 7 -
Usa2go, Dba Brooklyn Convenience 400 14 -
Tri-County Oil Co 375 3 -
Perky Pantry Westside Store 350 9 -
Dollar General #12861 - Clinton 320 0 -
Lightning Quick Gas-N-Go 14 304 22 -
Artesian Wells Sports Bar 300 53 -
Grace Point Evangelical Free Church 300 0 -
Clark's Corner 300 4 -
Clinton Fuel Express, Inc 300 21 -
Lee Villa Mobile Home Park 283 34 -
Lightning Quick Gas-N-Go 269 83 -
Riga Township 266 73 -
Dollar General #23205 - Clayton 256 0 -
Deep Lake Recreational Park 250 84 -
St. John's Lutheran Church - Adrian 250 0 -
Dollar General #23075 - Cement City 250 0 -
Deep Lake Recreational Park 2 250 0 -
Lake Arrowhead Estates 231 10 -
Leffingwell Estates 210 17 -
Porter Education Center 208 61 -
Faith Baptist Church - Adrian 205 13 -
St. Joseph Shrine Church 200 14 -
West Rome Baptist Church 200 8 -
Mitchell Memorial Park 1 200 10 -
Indian Creek Campground 200 0 -
Heritage Park 200 25 -

Compare beyond Michigan

Lower-flagged peers for Lenawee County

Cross-state counties nearest Lenawee County on flagged-system share (85.0%) and cumulative violation count (4,463). 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.