B08_ATTACHMENT_H_Backflow_Test___Maint_Record_2025.pdf

This document is a compilation of Backflow Prevention Assembly Test and Maintenance Records (Form BF-1) from the National Park Service. The forms document testing results for backflow prevention devices installed across multiple National Park Service facilities, including various lodges, campgrounds, visitor centers, and administrative buildings. Each form captures essential information about the backflow prevention assemblies, including manufacturer details (primarily Wilkins and Febco brands), model numbers, serial numbers, and FMSS Asset ID numbers for tracking purposes.

The testing records indicate that assemblies were evaluated for proper operation of check valves and differential pressure relief valves, with pressure drop measurements documented across the devices. Nearly all tested assemblies passed their evaluations, as indicated by "Assembly Passed" checkmarks in the remarks sections. The forms are consistently signed by Nathan Sowle from Community Fire Protection (1700 Soto St. Seaside, CA 93955) with AWWA Certificate #15730 and Gauge Number 02AC25020085, and dated December 2025. Testing locations span across multiple park areas including campsites, autoshops, administrative buildings, utility rooms, and various lodge facilities, with test dates concentrated in mid-to-late December 2025. All assemblies demonstrated closed tight conditions for control valves and properly functioning check valves, with differential pressure relief valves opening at specified pressures ranging from approximately 2.0 to 4.3 psid.