Keltic Engineering, Inc. has a wide range of experience with stormwater design and management projects. We work diligently to provide solutions for difficult stormwater problems as well as minor drainage issues by implementing best management practices. We understand the importance of providing our clients with practical alternatives to assist in the decision making process and to achieve positive outcomes and solutions that are cost effective.

Keltic Engineering’s Storm Drainage projects include:

• Storm Water Pollution Prevention Plans (SWPPP)
• Department of Ecology (DOE) Construction General Permit & EPA
• Temporary Erosion and Sediment Control (TESC) Plans
• Methods of Control for Sediment from Receiving Waters
• State Environmental Policy Act (SEPA) Checklist
• Determination of Non-Significance / Significance
• Notice of Intent (NOI)
• Notice of Termination (NOT)
• Storm Water Conveyance Systems
• Storm Water Runoff Calculations
• Storm Water Feasibility Studies
• Storm Water Master Plans
• Retention / Detention Ponds and Facilities
• State of Washington CESCL Inspections