Case Studies: Septic Systems and Maintenance

Case Studies: Septic Systems and Maintenance
MBR system enables development of reclaimed strip mine property

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Chamber system enables expansion of state park treatment system 

Problem: A remote location, the need for minimal site impact, and restricted funding challenged wastewater system designers for the Raven Rock State Park in Harnett County, North Carolina. Adding nine new campsites, six RV hookups and a bathhouse required the installation of a 2,655 gpd system and the contractor, Creech’s Plumbing, recommended Quick4 Plus Standard Chambers from Infiltrator Water Technologies to alleviate transportation and storage issues and expedite installation. Chambers were delivered on one truck and hand-carried to the installation site. 

Solution: A 3% slope allowed use of a gravity flow system to handle the additional wastewater flows. The wastewater from the camper hookups flows to the 6,000-gallon dual compartment septic tank via a 6-inch, 693-foot-long Schedule 40 PVC pipe. Bathhouse wastewater gravity flows 799 feet to the septic tank and then to an 8,000-gallon field dose tank. Duplicative alternating on-demand 110 gpm pumps in the dose tank send effluent through a valve vault to a 14-tap manifold, ensuring flow to both drainfields even if one pump fails. When the campground is at full capacity, the two drainfields, utilizing a total of 840 chambers, are dosed twice daily.

Result: To accommodate the potential for volatile weather, work was done in stages, inspected and covered. Utilizing advanced GPS technology enabled completion of the installation of both drainfields in one day. A licensed operator monitors the system remotely  and also performs routine maintenance. 800-221-4436; www.infiltratorwater.com  


Receiving station helps ready plant for increased influent load

Problem: Legislation for septic tanks in Florida may lead to increased septage volume at Indian River County’s residuals dewatering (biosolids) facility. Inspection and pumping of septic tanks every three to five years may be mandated.

Solution: The county chose a fully automated Raptor Septage Complete Plant from Lakeside. The compact, self-contained unit dewaters screenings to 40% solids. An overnight self-cleaning cycle stops the buildup of grit in the bottom of the unit. The system is pre-engineered, and all-stainless steel construction resists corrosion.

Result: Far more grit and rags are captured than anticipated. A 4-cubic-yard container is filled daily. There have been no equipment issues, and only basic daily maintenance is required. 630-837-5640; www.lakeside-equipment.com 


Solar septic alarm makes residence compliant for sale

Problem: Legislation for septic tanks in Florida may lead to increased septage volume at Indian River County’s residuals dewatering (biosolids) facility. Inspection and pumping of septic tanks every three to five years may be mandated. 

Solution: The inspector recommended a Nomad Solar Alarm from Minnesota Geotechnical Services. The order called for the fiberglass lid configuration. The other options available are 6-inch port, 4-inch port, through the riser and mount your own. The lithium 9-volt batteries were installed in the conduit body. The solar panels were oriented to the south for maximum solar energy. After the float was set, evaluation of the device proved it operational. Due to the need for pilot holes in the riser, installation took only 20 minutes.

Result: The alarm performed as advertised, making the property compliant for sale. 320-980-6218; www.water-tech-5667. myshopify.com  



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