WaterSystemViolationPulse benchmark report
As of 2026-11-04, WaterSystemViolationPulse holds 459 public records from U.S. EPA Safe Drinking Water Information System (SDWIS) via Envirofacts and EPA ECHO. The largest group is Microbial (coliform, E. coli, treatment technique) with 410 (89%); the median population served is $142 (middle half $50 to $864). Computed from the live dataset and updated on every refresh.
Last updated 2026-11-04 · Source: U.S. EPA Safe Drinking Water Information System (SDWIS) via Envirofacts and EPA ECHO
What is the typical population served?
| Point | population served |
|---|---|
| Lowest | $25 |
| 25th percentile | $50 |
| Median | $142 |
| 75th percentile | $864 |
| Highest | $75,873 |
By location
| Group | Records | Median population served |
|---|---|---|
| IN | 59 | $60 |
| PA | 48 | $110 |
| AZ | 35 | $1,005 |
| LA | 30 | $4,446 |
| MI | 28 | $112 |
| CO | 25 | $127 |
| NC | 23 | $142 |
| ID | 19 | $85 |
| AK | 17 | $70 |
| CT | 17 | $29 |
| NM | 16 | $1,018 |
| IL | 13 | $150 |
| MT | 11 | $102 |
| MO | 10 | $37 |
| NY | 10 | $117 |
By category
| Group | Records | Median population served |
|---|---|---|
| Microbial (coliform, E. coli, treatment technique) | 410 | $121 |
| Chemicals (inorganic, organic, radionuclides) | 30 | $257 |
| Disinfectants and disinfection byproducts | 17 | $2,083 |
| Other rule | 2 | $6,097 |
Records by month
| Month | Records |
|---|---|
| 2026-05 | 151 |
| 2026-06 | 242 |
| 2026-07 | 59 |
| 2026-08 | 7 |
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Frequently asked questions
How many records does the WaterSystemViolationPulse benchmark cover?
459 public records from U.S. EPA Safe Drinking Water Information System (SDWIS) via Envirofacts and EPA ECHO, as of 2026-11-04.
How often is it updated?
On every data refresh, automatically.
Can I cite it?
Yes: cite "Zalwin, WaterSystemViolationPulse benchmark report" with a link to this page.
Computed by Zalwin. Informational only. WaterSystemViolationPulse alternatives · All reports