# SOUTHWEST GAS CORP — Maricopa County, AZ

- **operation:** document
- **citation:** NPMS FIPS 04013 / OPID 18536
- **title:** SOUTHWEST GAS CORP — Maricopa County, AZ
- **source type:** inspection
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** current
- **official:** true
- **published on:** 2026-07-16
- **effective on:** Not available
- **summary:** 129.974517 active Natural Gas pipeline miles in Maricopa County, AZ; public NPMS snapshot 2026-07-16.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/npms-mileage-0e249dd5ebe3be8a1e7652b8-f19744c7d146.json
- **markdown:** https://regulus.evalyn.ai/document/npms-mileage-0e249dd5ebe3be8a1e7652b8-f19744c7d146.md
- **app url:** https://regulus.evalyn.ai/document/npms-mileage-0e249dd5ebe3be8a1e7652b8-f19744c7d146
- **source url:** https://www.npms.phmsa.dot.gov/Documents/NPMS_Active_Pipe_County_Mileage.xlsx
**body:**

SOUTHWEST GAS CORP (PHMSA OPID 18536) reported 129.974517 active Natural Gas pipeline miles in Maricopa County, AZ (county FIPS 04013) in the public NPMS summary snapshot dated 2026-07-16. The snapshot includes active assets only and excludes permanently abandoned assets. Exact pipeline locations and restricted NPMS GIS data are not included.
- **truncated:** false
- **body characters:** 344