Rodd said the stream that was polluted is running off into Beaver Creek, which then feeds into the Blackwater River, just above Blackwater Falls State Park.
Marshall recently completed a report summarizing his measurements of water quality and pollution in the stream.
"Siltation is of great concern in any case," Marshall wrote in the report dated August 14. "But is especially worrying here because of the millions of dollars and decades of work by public and private organizations and individuals to restore the Blackwater River into one of the state's premier trout fisheries.
"These elevated turbidity measurements vastly exceed state ... water quality standards. The bottom of Beaver Creek is heavily embedded in silt. Remediation of this will be expensive and even with remediation, it will take years to flush the silt downstream where it will cause more problems in the Black Fork and Cheat River," Marshall wrote.
The J.F. Allen Company won its contract bid on July 19 for the Corridor H Project. Work on the 10 miles of four-lane highway, from Mount Storm to Davis, is scheduled to be completed by Sept. 30, 2014.
Carrie Bly, a spokeswoman for the West Virginia Department of Transportation, said Friday she could not get any immediate response from DOT leaders about the pollution problems along Beaver Creek.
"I suspect that the increase in sediment is most likely due to the heavy rains this summer," Bly said.
Marshall said he and other residents of Davis noticed the pollution of Beaver Creek just after it started.
"We saw our trout stream getting pummeled with silt. Then, two weeks later, Judy Rodd knocked on my door looking for people to monitor the acid discharges into the river related to previous mining."
Marshall said Beaver Creek, a designated trout stream, is not supposed to have any silt washing into it.
"Beaver Creek is much cleaner now because of reclamation efforts from DEP and Friends of Blackwater," he said.
Reach Paul J. Nyden at pjny...@wvgazette.com or 304-348-5164.