Friday, March 10, 2006
BOH eyes new technology for septic system repair
Property owner Richard Bissell and engineer David Schofield appeared before the Board of Health (BOH) to review plans for a new septic system incorporating Innovative/Alternative (IA) technology to replace the failed septic system on Bissell's property at 145 South Street. Earlier, Bissell had received local approval for a system using standard technology, but the state Department of Environmental Protection (DEP), had required that the applicant include an IA System due to soil limitations on the property. DEP reviewed the Title 5 permit application because the applicant had chosen to submit soil samples rather than the usual perc test data.
The proposed IA system would be manufactured by Presby Enviro, and Schofield provided technical information and a small sample of the type of pipe used. The relatively new IA system has been approved by DEP, but this is the first time it would be used in Carlisle.
Schofield said that while this new system is passive, he thinks it is better than some active systems. The greater surface area created by ridges on the pipe allow the formation of more biomat, which provides additional treatment of the sewage before the effluent reaches the groundwater.
He also presented plans for the new system and provided manufacturer information and specifications for BOH consulting engineer Rob Frado, who will review the plan in preparation for the next BOH meeting on March 21 when the public hearing resumes.
© 2006 The