EPA Region 10 Settles with Granite Excavation of Eagle, ID and SUEZ Water Idaho, Inc. of Boise, ID
for CWA Violations
On June 8, 2021, EPA Region 10 filed an expedited settlement agreement resolving violations of the
Construction General Permit by Granite Excavation of Eagle, Idaho and SUEZ Water Idaho, Inc. of
Boise, Idaho. SUEZ Water Idaho, Inc. (owner) and Granite Excavation (general contrator) are operators
of the Warm Springs Mesa Piping Improvements, Phases 1 & 2 construction site. SUEZ Water Idaho,
Inc. failed to obtain CGP coverage and both operators failed to update the SWPPP and address trackout and maintain multiple gravel socks protecting storm inlets. Sweeping track-out and replacing
gravel socks reduced exposed sediment an estimated 165,243 lbs on the Site. The Site drains to the
Warm Springs and Squaw Creeks, and Maynard Gulch, which are part of the Lower Boise River
watershed. This River system is listed as impaired for sedimentation/siltation, temperature, Chlorpyrifos
and Malathion.The Respondent has agreed to pay a penalty of $4,620 and has returned to compliance.
The estimated cost of injunctive relief is $1,100.