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. SITE ADDRESS S-r-. CITY OF ORONO ON -SITE SEWAGE TREATMENT - REPAIRS OR ADDITIONS TO EXISTING SYSTEMS THE FOLLOWING GUIDELINES SHOULD HELP YOU IN REPAIRING YOUR FAILING SEPTIC SYSTEM: 1. System is 6a.iti,ng because: 0 Poor soil conditions MToo much water use for size of system 0 High water table. aSludge getting into drainfield - tanks need repair/replacement 1-1 Other Unknown; or a combination of the above factors. It is not always possible to determine the exact cause of system failure, but those listed are common factors. 2. Tanks - City Code %equ Aes 2 .tanks .in a normat nes.identiae gray.c ty-6tow system: 1-1000 gatton, 1-750 gatfon precast concAe-te -tanks .in seni.es. These aAe minimum sizes - you may wish to instatt taAger tanks. 16 you have onty 1.tank, it--" noAmatty requ Aed to add a second when %epaiAi.nc, a 6a.iting system. 16 you have 2 .tanks but they aAe substantiatty undmized (500-600 gateons, bon instance), it .is recommended that .they be reptaced. 16 youA %epaiAs wits %equiAe a pump, it shoutd be ptaeed .in a thvcd .lank (500-1000 gateon recommended). aSystem will likely require replacement/addition of 1 or more tanks: 3. A note about pumps: Pumps and pump eontAots have out o6 necessity become betteA designed and more duAabte in .the tact hew years. Neatey one septic system .in 6ouA instateed .in Orono makes use o6 a pum;-, due to site conditions. A pump may be needed: - when basement 6toor dAa.ins or towest sewer tine are betow .the aAea to be used as dnain6ietd. - in att mound systems, which cute used wheAe high water tabte or stowty pereotati.ng zoitz are bound. There ate ess enti.att y .two -types 06 pumps used .in septic systems appt.icat ions . 1. E66tuent pumps - pump onty t.iquids, normatty used a6teA the second septic .tank, or 604 taundAy .in .the basement; and 2. Gn i.ndeA or s ot.id6 - handt i.ng pumps, used 6oA basement .toi t e is and sometimes .instatC.ed in an outside sump, -hich pump sewage up to septic .tanks on high ground. Pump 6aiC.uAes .in .the past have been due mostty `o switch 6aituAes (eonAos.ion or weaA.ing out) and etectni.c connection corrosion. Both o6 these probtems have been reduced by use o6 eo4Aos.ion-4e.6istent 6toat switches and connection boxes. White pump 6ai.tuAes aAe tens common than in the past, a high water atahm costing approx,i.mateey $75-$100 is nonmatty %egUi,Aed wheAe a pump .ch used. It's wett worth the price 16 it saves you a eostty basement cteanup. FlRepairs to system will likely require a pump, including a pump tank and alarm system. Page 1 o6 3