Yellowstone NP Wastewater Groundwater Monitoring

The National Park Service Intermountain Region is seeking a contractor to perform annual ground and surface water monitoring at four wastewater system percolation ponds within Yellowstone National Park, located at Fishing Bridge, Grant Village, Old Faithful, and Madison. The project requires comprehensive environmental testing, including sampling 58 well and surface water sites between August 1st and September 30th, 2025, with laboratory analysis for chlorides, nitrate plus nitrite, and Kjeldahl nitrogen using EPA-certified methods. Contractors must provide a field work manager with at least 10 years of professional hydrology experience and demonstrate capabilities in wilderness and bear-country safety procedures. The government will evaluate proposals based on price, project management capabilities, prior experience with groundwater monitoring in remote wilderness conditions, and past performance. Quotations must be electronically submitted to Molly Lynam by May 1, 2025 at 5:00 PM Eastern Time, with contract award anticipated shortly thereafter.

This contract opportunity is a total small business set-aside under NAICS code 541620 with a small business size standard of $19.0M for environmental consulting services. The period of performance spans from August 1, 2025 to April 30, 2026, with key deliverables including a draft annual report due February 15, 2026, and a final edited version due March 31, 2026. The place of performance is Mammoth, Wyoming, and the work involves challenging field conditions including dense forest locations and potential wildlife encounters. Contractors will be responsible for providing all sampling equipment, transportation, personal protective gear, and bear safety equipment. The project will require 174 total chemical tests across monitoring sites, with specific requirements for creating detailed maps and data tables analyzing groundwater and surface water quality, comparing current results to historical data collected since 1974.