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05/26/.2009 13:14 9518273349 DOUGLAS KUNEY PAGE 07/09 P-W61 AlMrODlc La90011S lar Ntorage/I reftTM.Ont Of L1veStock Manure University of M1...Page 8 of 1U betW—the uppef pumpadM mark and the spillway i6 the v0Iume of 25-year,24-hour sioum.Thi9 volunla is caped the safety volume_ IF the opelwlot surfers area tmnb9buting to the lagoon Inflow Is greater sn 70 pwcem of the tsgoon Brea,the eefety volume depth Is computed using the folipwing formula, Safety volume depth=0.67 feel+I(VoUa►e Toot 101 suffate x 0.5 resp I egrare cot lagoon ataiece area) Pump-down or manure level markers Pump•aown or manure lava)markers or indcatara,area simple but iiftftf runt component of a manure starape faaliry. Such a marker enables the operaeor to ascertain quickly and easily the degree of fm of the lagoon,the point at which pumping or amp"should b%lin,and the 000 at which 4 should an(i.The presence of a durable,easily read mallter givac inapmAar or regulatory personnel aanffdanac that a toga=1a be!no rhanaged Property. f xparience nes shown that pumpolown marten must be mads ofd we mass dais and property Installed to amrd the tong I fe needed,The operator or Inspector should be able to esoestain tha following information when observing a Pump4oym rns*or, • oaten pumping operatbns mhould beors, • wnen pumping operawns snowa ens, • Leval at which oveAlow wiT occur. • Fraction of total atorsge that is currently filed. R common practice is to Install steel fence pasta at the upper and lows pump-down[ovals for eafBlen impoundmerlfs. Mile this approach provides basic info...e non beglnning and endlr{gpump•down,experience has shown trim more tvrowtadge is neadad.Also,fonap paste installad its this manner are sub"to eh maga wrist rtlarebWW1nesrt A Grant) pump down marker will Indicate the level,or elavation,Of marlurd throjghaut the po"bfe range tri—lower pump- da"levet to pyer}?ow,or spillway)In the lagoon_Expedence has ehon that a 6"x 6^tl+eatCd woad pont propsrly imbadded makes a good pump-dgam markar.Notctft or other indicate can be carved into the past to snow,partinent elevatlons.Painted numbers or colors on the pest arta not dufablo enc�gh to molnteln resdablifty over a number of years.Figure 4 shows a type of marker designed to mast Its above Cr6ria. I I;guru 4 I Nmmw of 25.yaaa, Pump-down mar-icer in an anaerobic lagoon. I 24-trowtor storm(10cal) �notch ec�4a,ration' OF sor auudfaw spa"or WOO ev 4 RR 80%cd norM Gr�. Iofep%ot~ i i !: satPW at 188131'''[leap` . . I� Permanent markers should be Installed to show the level at Which pule ag the lagoon shoedd begin(i foot or more below full cool lave!)and the level at whleh pumpinp should atop-InWimedlate markings.such as at each fact,are *Nrable to better eatimata the volume of efffuent to ire lagoon.A dear gags with marltings every foot or lea from the dssign level to the full pool level oan be an aid In determining the aereNnohes to be pumped down each tkne, Pump-down and land application ; Preparation for lagoon pump-clown should start before the lagoon Im I reaches the upper pu rVAIMM ma*w 10 reeve the proper eatery volume to contain a 25 year,24 hour rainfall avant �kgitati0n befort and during pump-Gown is jC nl,innded to rcmwe=111r•'d aunda and aWlievQ aiwarnum nmWerrt recovery_If the 16900n b 10 be aghatod,a sample for nutftnt tasting Should be taken after agitation. Land application is Ire moo desirable method for M9kirrp use of the 11ments and organic matter M lagoon effluent. Sprinkler kriga lon or use of a towed-hose b'aclor-mounted applicator bre the current practi a l methods of tranSporling and applying large volumes or lagoon affluent, II Ui rdm the Unined Wettional$lrara:gy for Animal Ponding Operations,idle dealred outaoma In far An ean4ln{I'~smimal faeding opwaftm to dovdap and implement a comprehenaivo nutrioM management plan(CLAMP).CLAMP$should l h tp:llextension.mis$oun-edulpublications/Display-Pi b.aspx'?-EQ387 � 5/21/2009