California Drop Forge Alhambra Avenue

City of Los Angeles requires stringent measures to mitigate storm water and California Drop Forge was required to comply with new regulations. WES provided a solution and designed a system that conveys all storm water to proposed infiltration devices. The designed system takes care of the first 0.75 inches of rainfall of a storm event and mitigates the calculated excess volume (ΔV) for a 24-hour through infiltration. An overflow system allowed the excess water to drain to the street without pollutants in compliance with the LID (Low Impact Development) requirements. WES prepared civil engineering plans, received final plan approvals and grading permits necessary to satisfy agency requirements.