How is the sampling done? William R. Kreznor & Associates, Inc. conducts testing using a truck-mounted hydraulic sampling rig. The rig pushes a tube into the ground to a depth of 5 to 7 feet, and extracts a core sample ranging from 1 to 3 inches in diameter. If the soil contains a substantial amount of rocks, is shallow to bedrock, has been disturbed by filling or mining activity, or the site is inaccessible to the truck because of slope or dense woody vegetation, the soil may need to be examined from pits excavated by backhoe. In some cases, sampling can be conducted using hand tools. Where should the testing be done? For a conventional, trench-type system, the test area should be accessible by gravity from the home site; in other words, at an elevation about the same or lower than the home site. Pumping wastewater uphill to the drain field will add what may be an unnecessary cost. Alternative systems usually require pumping so elevation differences between the system and home site are not as critical. The specific distances separating the system from property and home site features may vary among each county or municipality. As a general guideline, the system should be located: 5 to 10 feet from the property line 20 to 30 feet from the foundation (10 feet from an accessory structure) 75 feet from a well 10 to 25 feet from a water supply line 50 feet from a body of water 25 feet from an in-ground pool (10 feet from an above-ground pool) 5 to 10 feet from a driveway After the area is tested, you might consider flagging or staking it to keep vehicle traffic from damaging the area. Keep in mind that the area should not be driven on by heavy vehicles after the system is installed. Also, trees and shrubs will need to be cleared from the system area prior to installation. So, if the lot is wooded, select an area where the trees are less dense or least desirable. William R. Kreznor & Associates, Inc. has the expertise to assist our clients in selecting a test area or areas. DESIGNED BY BLUE SKY CONSULTING