Craig Brook National Fish Hatchery

East Orland, Maine | US Fish and Wildlife Service

Craig Brook NFH is one of over 70 federal hatcheries in the country operated by the U.S. Fish and Wildlife Service. Opened in 1871, it ranks as the oldest salmon hatchery in the country and was established for the production of Atlantic Salmon to supplement natural propagation and augment the annual runs along the Atlantic Seaboard. The fish hatchery has a discharge permit issued by the Maine Department of Environmental Protection (DEP) for discharge of a monthly average of 3.5 MGD of fish rearing and hatchery wastewater, and the hatchery was not meeting its Total Phosphorus (TP) permit limits. D&K completed an engineering assessment of the existing treatment system and recommended new technologies that could be implemented to lower the TP in the discharge effluent. Leading an A/E team, D&K had previously designed major improvements and renovations to the hatchery, including constructing new hatchery facilities, a visitors’ center, 4,000 feet of a new water line to Craig Pond, and associated infrastructure improvements. 

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Project Elements

• Evaluated existing treatment system, including field measurement of flows and operational parameters
• Prepared a 169-page report highlighting ways to improve the wastewater treatment system and recommending three options for phosphorus treatment of the wastewater stream
• Flagged wetland boundaries
• Coordinated with State and Federal Agencies
• Prepared a NEPA Environmental Assessment
• Assisted with securing MDEP Natural Resource Protection Act, U.S. Army Corps of Engineers Section 404, and MDEP Lake Discharge Permits
• Provided civil/site engineering, including site layout for roads, building area, parking, and drainage
• Developed construction plans
• Completed electrical/mechanical design for HVAC, lighting, power, and control systems for the hatchery