PlainWater

Coamo Municipio, Puerto Rico

SDWIS compliance plate

Sheet PR043 · Coamo Municipio 4 sys · 2,927 viol · #3144/3254

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

  • VIOL-SEVERE 100.0% flagged
  • HEALTH-MID 33.2% health
  • RANK-BOTTOM #3144/3254
  • PHOTO-FINISH ±0.0 pp
  • PFAS-NONE No UCMR5 set
  • SRC-GW GW lead 75%
  • SYS-TINY 4 systems
  • BOOK-MOST 6/7 fields

Nearest flagged-rate peer: San Juan Municipio (+ 0 pp flagged-rate)

According to EPA SDWIS county population served used on /counties, Coamo Municipio ranks #3,144 of 3,254 counties by people served, and #66 of 72 counties in Puerto Rico. See methodology · corpus placement.

Coamo Municipio standing, mid-flagged corpus third

Flagged-system rate 100.0% is in the corpus middle third (≤ 100.0% flagged) across 2,973 counties with ≥3 SDWIS systems . Health-based share 33.2% is health-based share above the upper third (> 24.5%) . No UCMR5 tests in this extract for Coamo Municipio . Population served ranks #3,144 of 3,254 · #66 of 72 in Puerto Rico.

Flagged-rate neighbourhood around Coamo Municipio

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

0% 20% 40% 60% 80% 100% Vega Baja Muni · lowest San Juan Munic · near Rincon Municip · near 88.9% 100% 100% 100% 100% 100% 100%

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

Water Systems

System Name Population Violations PFAS
Asociacion Residente San Diego 368 605 -
Comunidad Monteria 360 758 -
Coamo Arriba 340 642 -
La Cuesta 172 922 -

Compare beyond Puerto Rico

Mid-flagged peers for Coamo Municipio

Cross-state counties nearest Coamo Municipio on flagged-system share (100.0%) and cumulative violation count (2,927). 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.