13.25.070 Temporary construction dewatering plan.
A. A complete Temporary Construction Dewatering Plan shall include the information and items identified in the Temporary Dewatering Operating Policy.
B. The City of Redmond shall review Temporary Construction Dewatering Plans completed in accordance with the Temporary Construction Dewatering Operating Policy, to determine that the development project has addressed all potential impacts to City water supply wells, storm water conveyance and treatment systems, and the movement of contaminants. The City of Redmond retains the authority to add conditions and requirements to construction activities to the Civil Site Construction Permit. Private development projects shall not start TCD activities until the City of Redmond has granted the Civil Site Construction Permit. Temporary Construction Dewatering shall not begin at public capital improvement projects prior to approval of the site design by the City Engineer. Conditions and requirements shall be included with the development project construction contract as a special provision.
C. A Contamination Mitigation Plan shall be included as part of the Temporary Construction Dewatering Plan to address all contamination identified at the development site or within the proposed TCD’s radius of influence. Contamination Mitigation Plans shall include:
1. A hydrogeological evaluation of the potential movement of contaminants due to TCD at a specific site; and
2. All required information and actions detailed in the Temporary Construction Dewatering Operating Policy.
D. Conditions regulating the monitoring, mitigation, treatment, and disposal of contaminated groundwater shall be imposed on the development project. Acceptance of the applicant’s Temporary Construction Dewatering Plan shall be contingent on the City of Redmond’s satisfaction with proposed mitigation measures. (Ord. 2957 § 7 (part), 2019: Ord. 2831 § 2 (part), 2016).