A 40% reduction in waste water flow was achieved within a 4 months period solving a compliance situation which had resulted in a Consent Order. This action saved owner hundreds of thousands of dollars in improvements to the waste water facility. The waste water treatment facility was processing over 57,000 gallons per day of waste water while being permitted at 35,000 gallons per day. The option of adding additional capacity was not feasible due to space limitation and associated costs. We worked with the owner to develop a program that reduced the waste water flows to the plant by 40%.
Parkwood Estates is located in Plant City, Hillsborough County, Florida. The community consists of 213 mobile home units. The community was originally developed as a 55+ adult community. Approximately 5 years ago the community was converted from a 55+ community into a family community. The typical population of a 55+ community is 1.75 people per home. However, in a family community the population is 2.5 people per home.
The flows to the waste water treatment facility increased. The community was experiencing waste water flows in excess of 57,000 gallons per day, while the permitted capacity of its on-site waste water treatment facility was 35,000 gallons per day. This resulted in a violation of its waste water treatment facility operating permit which resulted in a Consent Order and fines being paid.
In order to achieve compliance two alternatives were evaluated: 1.) Expand the effluent disposal system and treatment plant to accommodate the additional capacity; and 2.) Institute an aggressive water conservation plan. In either case an evaluation of the collection system known as an Infiltration and Inflow (I &I ) evaluation was to be conducted.
The I & I Study found several sources of infiltration and inflow in the collection system and these were repaired. Following the completion of the I & I Study an aggressive water conservation plan was implemented. The water conservation plan included installation of remote read electronic water meters, charging for water use, a water audit of each home and hiring a part-time environmental utility to monitor the water use and water audits. The water conservation plan in large part reduced the flows from over 57,000 gallons per day to less than 35,000 gallons per day within 4 months..
This water conservation plan of action saved the owners hundreds of thousands of dollars in upgrades to its waste water treatment facility. It also restored the confidence of the Hillsborough County Environmental Protection Commission; the permitting agency on the facility.