Washington State Department of Ecology | Toxics Cleanup Program | Site Information

Montesano Soil & Groundwater Investigation

Environmental Cleanup Information

Ecology has been investigating several individual sites in downtown Montesano that are contaminated with gasoline. We are concerned about how this contamination may affect human health and the environment. We want to discover if pollution from these sites may be joined together due to the area’s shallow ground water and other factors. Our overall goal is to identify the extent of the contamination and, once this is identified, decide how to best deal with it. We plan to keep the community well informed and work closely with the City of Montesano on solutions.

First (Interim) Phase Report on the Soil and Groundwater Investigation, Downtown Montesano -- September 19, 2005

Focus Sheet

Report Text
Table 1 Soil Analysis
Table 2 Groundwater Analysis
Figure 1 Vicinity Map
Figure 2 Completed Borings
Figure 3 Conceptual Model
Figure 4 Potentiometric Surface Map
Figure 5 Soil Concentrations
Figure 6 Groundwater Concentrations
Figure 7 Proposed Future Investigation - Available for viewing at the repositories listed in the fact sheet
Appendix A: Sampling and Analysis Plan

Frequently Asked Questions June 13, 2005

Schedule of Activities June 10, 2005

Map: Proposed Boring Locations May 25, 2005

Montesano Groundwater Investigation of Leaking Underground Storage Tanks, October 2004 and March 2005

This page last updated Wednesday, May 30, 2007