Camp Pecometh is a Christian camp and retreat ministry established in 1946 that is owned and operated by the Peninsula-Delaware Conference of the United Methodist Church. The facility is located on the Eastern Shore of Maryland just outside of Centreville. It is situated on 275+ acres along the Chester River. The camp was adding a new retreat facility and also had many old individual septic tanks, some of which were failing. Pecometh was looking for a solution to address the current situation as well as handle future growth.

A new $1.1 million centralized wastewater treatment system was designed by Lane Engineering. The system was designed to collect and treat all existing wastewater from the facility’s existing 17 individual septic tanks throughout the property and handle any future expansion for nitrogen-reduction. The installation of this system will assure Camp Pecometh’s part to significantly improve the water quality on the Chester River, a major tributary of the Chesapeake Bay.

Lane Engineering partnered with Septi-Tech, a leading supplier of advanced wastewater treatment systems, to design the onsite treatment system. Once the project was awarded to RCR Septic Services, Gillespie Precast was contacted to finalize the constructability and design of the precast tanks. Located within the critical area of the Chesapeake Bay watershed, it was imperative that every tank be watertight. Gillespie chose to manufacture the 11,000 and 20,000 gallon tanks using a box culvert style tank design to keep the section weights reasonable. The culvert ends were cast monolithically to assure water tightness and PA Inserts bolt pocket connection system assured the vertical joints would not separate. Joints were sealed with Hamilton Kent Super Seal gaskets and pipe openings had Press-Seal Cast-a-Seal 964, Trelleborg Kore-n-Seal Boots and PVC Couplings cast in. The 8,000 gallon tanks were designed using Gillespie’s standard center seam tank design and joints were sealed using Conseal CS-102 sealant. Pipe openings were treated thesame as the 11,000 and 20,000 gallon tanks.

The 48” and 72” diameter manholes were utilized for sanitary manholes, backflow preventers, a pump station, a valve vault and one drywell. Joints were sealed with Conseal CS-102 sealant and pipe openings were sealed with Trelleborg Kore-n-Seal boots. All structures had Neenah watertight bolt down frames and covers over the 24” openings. The septic tanks had PA insert watertight locking aluminum hatches over the larger openings. Every precast structure had to be tested for water tightness except the drywell. To accomplish this, every structure was hydrostatically tested before backfilling. The combination of high quality precast concrete along with Hamilton Kent gaskets, Conseal sealant, Press Seal and Trelleborg boots met the needs and passed the test without leaks. The main portion of the treatment system which was comprised of (2) 11,000 gallon holding tanks, (4) 8,000 gallon Septi-Tech M3000 processor tanks, (2) 8,000 gallon denite septic tanks, (2) 8,000 gallon standard tanks and (1) 20,000 gallon septic tank were installed over 2 days. All sections went together properly and with ease. Testing for water tightness was performed over the next week and the entire area was backfilled within 2 weeks from the initial excavation.

Project Timeline

  • Delivery – May 2011
  • Notice to proceed with fabrication – March 2011
  • Project was awarded to RCR Septic – Oct 2010
  • Plans were issued for bidding – Sept 2010
  • Project was awarded to Gillespie Precast – Oct 2010
  • Production time – aprox 2 weeks
  • Project complete and operational – September 2011