[Research](/research) / HarrisDischargePermitPulse

# Harris County TX Discharge Permits & DMRs Due by Facility: 2026 statistics from 370 public records

**The most common designation is Minor discharger: 250 of 370 records (67.6%) (as of 2026-11-04; source: Harris County Discharge Monitoring Reports (DMR) facility list (data.texas.gov)).**

Data as of 2026-11-04 · Compiled by Zalwin from Harris County Discharge Monitoring Reports (DMR) facility list (data.texas.gov) Copy citation

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## Key findings

- Zalwin's HarrisDischargePermitPulse dataset holds 370 HarrisDischargePermitPulse records dated 2026-09-30 to 2026-09-30 (as of 2026-11-04; source: Harris County Discharge Monitoring Reports (DMR) facility list (data.texas.gov)). [#](#finding-1)
- The most common designation is Minor discharger: 250 of 370 records (67.6%) (as of 2026-11-04; source: Harris County Discharge Monitoring Reports (DMR) facility list (data.texas.gov)). [#](#finding-2)
- Across 370 records with a stated outfalls, the total is 633 and the median is 1; the largest is 23 (Equistar Chemicals La Porte Complex) (as of 2026-11-04; source: Harris County Discharge Monitoring Reports (DMR) facility list (data.texas.gov)). [#](#finding-3)
- The top 10% of records by outfalls (37 of 370) account for 31.4% of the total (as of 2026-11-04; source: Harris County Discharge Monitoring Reports (DMR) facility list (data.texas.gov)). [#](#finding-4)

## HarrisDischargePermitPulse records by designation

| Group | Records | Share |
|---|---|---|
| Minor discharger | 250 | 67.6% |
| Major discharger | 120 | 32.4% |

## Methodology and data provenance

- Sample: 370 public records dated 2026-09-30 to 2026-09-30; illustrative samples excluded.

- Source: Harris County Discharge Monitoring Reports (DMR) facility list (data.texas.gov). Refreshed automatically about every 168 hours; figures above are as of 2026-11-04.

- Shares are of all records in the dataset; totals and medians use only records with a stated outfalls.

- Organization-level data only. Informational; verify individual records at the official source.

### Cite this study

Zalwin Research, "HarrisDischargePermitPulse statistics" (data as of 2026-11-04), https://zalwin.com/research/harrisdischargepermitpulse

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