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HomeMy WebLinkAbout1988 Jun 17 - Memo with Nitrate Loading Calculations It t `-V*AAl 3 amitt .................................................................................................................................................................................................................................................................................................................... ........................................................................................................................................................................................................................................................................................................................................................................................................... ............................................................................................................................................................................................................................................................................................................................................................................. .........................................................................................................................................................................................................................................................................................:..................................................................................................................... . oas `uallnd .y�l9aliy r7V7)'-c=5)(-(Z.Y" 7"V ........................................................................................................................................................................................................................................................................................................................................................................................................................... .. ........................................................................................................................................................................................................ 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L93O S.1.1.3Sf1HOVSSVW 'H1flOWMyA V9 alnoa r,: yaaays uweW 6£6 ONIU33NI9N3 3dV3 NMOO fh 10 2 H 3NaY p 10 ale- ( T / bw OT > ) buzpsoZ N wdd E•8 = Tsb / T 8 •E x Tsb OOL'OEE #/bw 000'VSV x N #EZ = (T/6w) N - ON .IseA / Tsb OOL'OEE = , 43 L• OTZ'VT7 = I TTs3uTs8 .Is9A / u9T @ 38 8ST 'EE = abssuoag .IsaX / #E N uoTI.BzTTTgae3 uM2'j buTmosa' N %09 3s 000T / #E @ •3•s 000Z sa.'v uML'I pewnssy .IsaA / #OZ N 4uan-g;H oT4daS suos.Iad t. = esnoH woo.Ipag E AouednooO s3iwjad is9A / UOSJad / #S 4uenT;3H oTgdes suollpadsw SNOIsy'InD'I' D JNIa1O i HZy2IZIN su6lsap HZIOWEVA •M - UVO21 AHTIVA HJQIsIsvd walsAs a6emas 9S#-L8 # am - VSSHd 6uluueld aps sAanins '3'd )luegned'ti PROW um:*puel .9.TH..3.d elefp'H awy uB!sap ieinpn4is sioAanins pue,'9 siaauiBua Immo Zwiaawl ua oda" mop 5L9ZO Slew iiod ylnowieA e9 lJ leans u!ew 666 ,O.JisEo YARMOUTH BOARD OF HEALTH Bv: r61^f' MGL£L(liv Date: C 8 Nitrogen Loading Calculations Project: 77 5Sr4 ZOOO SF ', 1 o Results LAwN i LAWN ------------- ----- - Step Description Equation 1 Case 1 1 Case 2 1 Case 3(,;.Case 4- 1 Case 5 ---- - ---------- ------' -- ------ - 1 _ 1 1 ' 1 1 1 1 1 —1 3 3d • . I 1 1 Title V sewage flow, igal/dayl 1 : 1 330 : 1 - 1 9 1 I 1 1 1 1 , 1 ' 1 : 2 i Nitrogen load IrO1 selvage, 1 Step 1 1 9.39 1 I 1 1 : : I 1 (ib/yr► 1 135 . ( 1 35, l 1 1 I I I : 1 : I 1 1 1 1 I 3 1 Fertilized lawn and garden 1 1 I 1 1 1 I I I area, (1000 sq ft) ZO 1 11 1 1 I 1 I 1 1 1 1 4 1 Nitrogen load fro' fertilizer, 1 Step 3 x 1.80 1 11 , , 1 I (ib/yrl 1 1 1 1 1 1 1 1 1 1 : 1 1 1 1 1 1 5 1 Pavement area, 11000 sq ftl 1 1 / 1 a 1 1 1 1 1 I I 1 1 1 1 1 1 6 1 Nitrogen load frog pavesent, Step 5 / 3.21 - - 11 1 1 11 I 111b/yrI 1 1 1 ) 1 1 1 I 1 1 1 1111 1 1 1 7 : Roof area. 11000 sq ftl - 1 1 1 .2_ 1 ( r Z 1 1 1 1 1 8 1 Nitrogen load Eros roof area. 1 Step 7 i 6.41 I 1 1 1 1 1 I 1 11b/yr) 1 1 (5. 1 G 1 G, l : 1 : 1 1 1 1 1 1 1 1 1 1 9 1 Natural area, )1000 sq ft) I 1 3Z( 1 2, 1 1 1 1 , 1 1 1 i 1 10 I Nitrogen load fros natural 1 Step 9 / 214 1 : 1 1 1 1 1 area. flb/vr1 1 1 0 1 0, 1 1 1 1 : 1 1 1 1 1 I I 11 1 Total nitrogen load, 11b/yrl : Step 2 + Step 4 + Step 6 + 1 1 1 1 ; 1 1 I Step 8 + Step 10 1 99.O 1 3! 6 1 1 1 1 1 1 1 I 12 1 Recharge fro, sewage. lag/yr) 1 Step 1 / 2740 1 ©,1� 1 p i 17_ I I I 1 1 1 1 1 1 1 I 1 13 1 3otal impervious area. 1 Step 5 + Step 7 1 1 1 1 1 1 1 I11O00sgft) 1 11. '. 11 ,7 1111 1 1 1 1 1 1 : 1 1 14 1 Recharge frog iapervioas areas ;Step 13 / 40.1 1 1 1 1 1 1 1 1 tig/yrl 1 I ®.03 1 0,03 1; 1 1 1 1 1 111111 1 15 1 Total pervious area, 1 Step 3 + Step 9 1 1 1 1 1 1 1 1 11000 sq ft) 1 132 1 � 1 1 1 1 1 1------------------- 1 1 1 1 1 1 I 16 1 Recharge frog pervious areas, 1 Step 15 / 89.1 1 1 1 1 1 1 1 1 Tag/1r) 1 1 0'31 ( 3( `1 1 1 11 1 1 1 1 1 1 1 1 17 1 Total recharge, 1.g/yr) I Step 12 + Step 14 + 1 1 1 1 1 11 1 Step 16 1 (), 3( 1 O,5/ 1 1 1 1 1 1 1 1 1 1 1 1 1 18 1 Recharge nitrogen I Step 11 / Step 17 / 1.34 1 1 1 1 1 I l concentration. 1hgi1 or ppsl I 1 , 17 1 8 , 37- 1 1 1