 The daily load of aluminum in Solomon Creek ranges from 8 @.@ 8 pounds ( 4 @.@ 0 kg ) at a site below Pine Creek to 87 @.@ 9 pounds ( 39 @.@ 9 kg ) at the Buttonwood Tunnel . The average load is 29 @.@ 6 pounds ( 13 @.@ 4 kg ) per day . The lowest load of iron is 0 pounds ( 0 kg ) per day at the site below Pine Creek and Solomon Creek at Sugar Notch Run and the highest is 9 @,@ 624 pounds ( 4 @,@ 365 kg ) per day at the Buttonwood Tunnel . The average is 2 @,@ 305 @.@ 5 pounds ( 1 @,@ 045 @.@ 8 kg ) per day . The Solomon Creek boreholes and the Nottingham @-@ Buttonwood <unk> are the second @-@ largest and third @-@ largest sources of iron discharge in the Coal Region , contributing 9 @.@ 07 % and 7 @.@ 85 % of the iron load in the region , respectively . The daily load of manganese ranges between 0 @.@ 7 pounds ( 0 @.@ 32 kg ) above Pine Creek and 1 @,@ 086 pounds ( 493 kg ) at the Buttonwood Tunnel and the average daily load is 260 @.@ 1 pounds ( 118 @.@ 0 kg ) . The load of acidity in the creek ranges from 0 at site SR to 1 @,@ 506 @.@ 1 pounds ( 683 @.@ 2 kg ) per day at the Buttonwood Tunnel . The average load of acidity per day is 628 @.@ 9 pounds ( 285 @.@ 3 kg ) . The alkalinity load ranges from 288 @.@ 4 pounds ( 130 @.@ 8 kg ) on Sugar Notch Run to 135 @,@ 660 @.@ 8 pounds ( 61 @,@ 534 @.@ 7 kg ) at the Buttonwood Tunnel . The average daily load of alkalinity is 23 @,@ 716 pounds ( 10 @,@ 757 kg ) . 
