PlainWater

Putnam County, Illinois

SDWIS compliance plate

Sheet IL155 · Putnam County 22 sys · 3,447 viol · #2788/3254

VIOL-SEVERE · HEALTH-MID · RANK-BOTTOM · PHOTO-FINISH · PFAS-NONE · SRC-GW · SYS-SMALL · BOOK-MOST

  • VIOL-SEVERE 95.5% flagged
  • HEALTH-MID 23.1% health
  • RANK-BOTTOM #2788/3254
  • PHOTO-FINISH ±0.3 pp
  • PFAS-NONE No UCMR5 set
  • SRC-GW GW lead 100%
  • SYS-SMALL 22 systems
  • BOOK-MOST 6/7 fields

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

According to EPA SDWIS county population served used on /counties, Putnam County ranks #2,788 of 3,254 counties by people served, and #96 of 102 counties in Illinois. See methodology · corpus placement.

Putnam County standing, mid-flagged corpus third

Flagged-system rate 95.5% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 23.1% is health-based share in the middle third (≤ 24.5%) . No UCMR5 tests in this extract for Putnam County . Population served ranks #2,788 of 3,254 · #96 of 102 in Illinois.

Flagged-rate neighbourhood around Putnam County

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

0% 20% 40% 60% 80% 100% Sangamon · lowest Putnam · this county Williamson · near Pulaski · highest 58.8% 95.1% 95.5% 96% 96.2% 96.2% 100%

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

Water Systems

System Name Population Violations PFAS
Granville 1,359 392 -
Hennepin Pwd 750 10 -
Mark 555 180 -
McNabb 258 61 -
Lake Thunderbird Subdivsion 250 57 -
Magnolia 244 276 -
Standard 203 658 -
Putnam County JR High 200 786 -
Mid America Growers 200 578 -
Oak Park Estates 185 94 -
Fish N Fun Club 150 22 -
Rodeo Bar & Grill 100 16 -
Condits Ranch West Well 100 23 -
Spring Valley Boat Club 100 2 -
Condits Ranch East Well 100 27 -
Washington Mills 65 205 -
Edgewood Golf Course 50 11 -
Sacred Couer Retreat Center 50 0 -
Florid Inn 40 2 -
Putnam Christian Church 30 1 -
Putnam Co Conservation Dist 25 28 -
Lake Senachwine Upper 25 18 -

Compare beyond Illinois

Mid-flagged peers for Putnam County

Cross-state counties nearest Putnam County on flagged-system share (95.5%) and cumulative violation count (3,447). 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
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.