SCH Number 2005021037

Project Info

Title

O'Neill Regional Park Sewer Conversion Project

Description

The California Department of Fish and Game is executing a Lake and Streambed Alteration Agreement number 1600-2005-0244-R5 pursuant to Section 1602 of the Fish and Game Code. The Agreement authorizes the applicant to proceed with those parts of the project that will impact the above described streambed and bank pursuant to Fish and Game Code section 1602. The operator proposes to alter the streambed and banks incidental to the construction of a new wastewater collection system within O'Neill Regional Park. The project will facilitate a conversion from the existing septic system to a municipal sanitary sewer system. The collection system is designed to convey and dispose of wastewater from fourteen wastewater generation facilities located throughout O'Neill Regional Park. Work includes the construction of one lift station, and the installation of approximately 11,625 linear feet of 8-inch diameter pipeline. The existing septic tank and leach field systems will be abandoned in place. Implementation of the proposed project will result in temporary impacts to jurisdictional streams due to trenching, installation of the gravity sewer main, and backfill within the project footprint, for a combined impact of 0.11-acres of streambed and associated riparian habitat and 135 linear-feet of "waters of the State". Additionally, approximately 0.006-acres of paved "Arizona Crossing" within Hickey Creek and Trabuco Creek will be subject to temporary trenching. The concrete will be replaced following installation of the pipeline. The sewer main crossing Trabuco Creek will be placed on the upstream side of the existing concrete creek at Trabuco Creek. The main line across Arroyo Trabuco Creek will be encased with reinforced concrete, backfilled with slurry, and covered with minimum of 25-feet of soil. A minimum cover of five-feet will be provided at the Hickey Creek crossing and the sewer main will be encased in concrete.

2 documents in project