PSA NRC Environmental - Laserfiche WebLink

Home Browse Search

SEPTAGE SOLIDS When seplage solids :ire land applied. the st:indard fonnula (I) typic.illy lL~cd lo dden11inc the agronomil.' rate will be mncnded lo account for th.: high.:r conccntrntion ot" solids nnd allow proper mrutagcmcnt or the material in tons or cubic yards. ·111is fonnula will he amended as follows : • Allowed pounds of solids p.:r acn: pcr year~ 0 .02 * 68. 7 +-7.48 • Allow~d mnnbcr of gallons per acre p.:r yc:ar • Allowed Ions of solids pl!r acr.: per y.:ar · :\II owed pounds per acrc pcr year s 2000 • :\llowc<l cuhic )'artl~ of solids per acr,: per year •· t\llowed pound~ per ai.:re per )'Car , 61<.7 : 27 • Allowed ,1·..:t Ions per a.:re per year~ Alhmcd dry Ions uf solids per a.:re per year : "o solids (as a d.:..:imal) ·111.: ilhov.: fonnulas arc ha.~ed on the following ilssumplions•known values: • Pounds per cubic foot of dri.:d solids 68. 7 (b:1s,-d on an assumption or I . I grams per .:ubic centimeter) • Ass11111cd •• soli<L~ or inlluenl 2°0 (or 0.02) • Gallons per cuhic fool ·· 7A8 • Cuhi.: li:ct per cuhi,· yard '" 27 • Pounds p.:r ton = 2.000 Ui\'en that the malcrial will be gencrnll)' di')·. no distinction is made b.:lwecn w.:t and dry cubic yards (i.e . the ,·olumc would 1101 hc signili.:antly dilli:rcnl iflhc mulerinl were to he completely dried). APPLICATION PROCEDURES APPLICATION OF LIQUID SEPTAGE 'Jh: lilJuid scplage will he upplicd lo th.: lm1d using spray trucks or iiticcted into the soil. 171e lilJUid scplagc would not be injected in the pasture ar.:as cover.:d with sagebrush. but it may he injected in the aren~ covered by wheat. IA1nd applying the liquid scptag.: without tillage would allow the existing wgewtion 10 he maintained. 'f11is would hdp prevcnt erosion prohlems that muy arise hy dislllrhing lhc snit or the e:,.;isling vegetation . 'Ilic li<111id septage tlrnl is hmd applied using sprn\' trud, will be lime stahilizcd to r.:duc e pathogens nml w,"lor ntlrnction. Filly pounds o l'hy drnt e d lime will he added In each 1.000 gallons of scptagc . Ao auxiliary vacuum lin e will he w".:d lo pump the d ry lim e i111n the Ian!-1rud, as lhc septage i. pumped inln lhc 11111k. and unifonnl~· mix the nrnlcrials in the tank. ·m e hmd .ipplication contrnclor will he required lo monitor th e lime sl:1hili1.11lio11 process h) c nsun: the pl! is 12 or greater for .,o minute~ nl1er the applil:ntinn ,,r thc lime. Trcntmcnl is not nccc~sa ry. accnrding h> \\',\C I 71-]011 -270('.l)(h . ii' lhe-scptuge is in,icctc,I hccausc li,-.:stock will lll)I he alluw.:d to g raz,• for JO da~·s. th,· gcn.:rnl puhl ic is m>t all1l\\cd a.:ccss lo the sit.! and I egctation growi n g 1111 !he site will not be harv.:st.:d. APPLICATION OF SOLIDS ·111er.: nr1.1 two options li)r land application ofth.:: septag.:: solids. ·111.::sc options include: • Option,\: tl·lixing th~ sc:plagc solids with soil to b.: lL~.:d as part or the linal cover system for the limited purpose landlill. • Option B: Land applying the s..:plage solids lo specilic sites idc ntili.:d in lhi~ plan. t:n"Urf l(rfrl'l!ll(l' .IUUl'(t" nul founJ. Professional Services Agreement (rev. 09/24/2018) Page 20 of 28 11 ,~""" R. W. Beck 3