PlainWater
Contaminants →
EPA SDWIS Dense per-system load

Cryptosporidium in Drinking Water

12.1 violations per affected system (2,446 across 202) - dense load (> 5.8 violations per affected system).

Browse all SDWIS contaminants →

EPA contaminant code: 3015

Total Violations
2,446
Systems Affected
202
Health-Based %
0%
Violations / System
12.1

Cryptosporidium standing, mid-volume SDWIS third

Cryptosporidium lands in the middle third by violation volume (2,446), large enough for peer comparisons but not one of the handful of analytes that dominate the fleet-wide SDWIS ledger. Load is concentrated: 12.1 violations per affected system (dense load (> 5.8 violations per affected system)), which usually means repeat findings on the same PWSIDs rather than one-off detections spread thin. None of the recorded Cryptosporidium violations in this extract are classified health-based; the trail is procedural. Among 157 indexable contaminants, this page is #97 by violation volume. Utilities listed below are ranked by cumulative violation count for this analyte; pair that with population served to gauge household exposure scale.

Nationwide similar contaminants

Nearest by violation volume

Chloramine (2,449) COLIPHAGE (2,523) Stage 2 Disinfectants and Disinfection Byproducts Rule (3,102) Chlorite (3,255)

Nearest by systems affected

Coliform (Pre-TCR) (174 systems) Bromate (140 systems) 38-STRONTIUM-90 (138 systems) Chlorine dioxide (136 systems)

Cryptosporidium: monitoring/reporting trail

0% health-based · 100.0% monitoring/reporting across 2,446 records.

Health-based (0%) Monitoring/Reporting (100.0%)

Most Affected Water Systems

System State Violations Population
Elk City Water and Sewer Assn ID 80 320
North Greene Utilities, Inc. TN 72 5,604
Metropolitano PR 71 1,077,332
Aceitunas PR 66 8,961
Mayaguez PR 53 151,555
Iola, City Of KS 48 5,343
Penuelas PR 46 17,320
Morovis Urbano PR 45 20,628
Aguas Buenas Urbano PR 45 13,016
Town of Poolesville MD 43 6,005
Cotto Laurel PR 39 13,860
Smithville Water System TN 39 7,049
Regional Villalba Toa Vaca PR 36 33,711
Lago Guajataca PR 35 11,187
Ponce Urbano PR 34 111,926
Orocovis Urbano PR 34 16,869
Yauco PR 33 35,618
Maunabo Urbano PR 33 9,310
Talladega Water and Sewer Board, City Of AL 32 20,250
Villalba Urbano PR 32 3,362
Coamo Urbano PR 31 4,592
West Robertson Water Authority TN 30 5,915
Aguadilla PR 28 123,885
Santa Isabel PR 28 3,335
Las Piedras Humacao PR 27 36,032
Quebradillas Urbano PR 26 27,458
Juncos - Ceiba Sur PR 26 36,277
Cabo Rojo PR 25 20,749
Sabana Grande PR 24 25,229
Aibonito Urbano PR 24 5,524

Context: understanding water quality data · is my water safe?

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

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the EPA Safe Drinking Water Information System (SDWIS). Consult a qualified professional before making decisions based on this data.

Read our methodology - how this data is sourced, computed, and verified.

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.