Item #5

Item #5

Item #5

Item #5

Item #5

Item #5

Item #5

Item #5

Total Biosolids - Annual (tons) 42,500 Extra Costs for Sludge Acceptance Cost per ton/year

Total water landfiled from Biosolids (gals) 8,153,477 Well Replacement $6.69

Total water landfilled since 2012 (gals) 48,920,863 Dewatering - Trenching $3.16

Leachate treated per year (gals) 2,000,000 Dewatering - Pumping $3.23

Years to remove all of the water 24.5 Leachate Treatment $5.87

Trips to Toland 1,700 Leachate reuse $1.76

RT miles to Toland 74,800 Sludge hauling costs $8.94

RT miles to Bakersfield 425,000 Cost of lost air space $18.60

Delta 350,200 Total costs $48.26

FY2018-19 costs Well Replacement FY2018-19 costs Dewatering - Trenching FY2018-19 costs Dewatering - Pumps

Replaced Wells, # 15 Mini-Ex weekly rental $2,000 Dewatering pumps $67,000

Average Depth, ft 65 Dump truck weekly rental $1,000 Piping/Materials $5,000

Total footage 975 Weeks/year 10 Staff hours - Operator 250

Drilling/foot 90 Total trenches 75 Staff hours - Monitoring 150

Materials/foot 35 Materials/trench $500 Staff hours - Engineering 250

Laterals/well 1,500 Staff hours - operator 600 Staff hours - Compliance 125

CQA/Design/well 1,500 Staff hours - engineering 250 Fuel Costs $2,500

Drilling Total $87,750 Staff costs $48,750 Staff costs $62,750

Materials Total $34,125 Mini-Ex costs $20,000 Total Dewatering $137,250

Laterals Total $22,500 Dump truck costs $10,000 Costs per ton/year $3.23

CQA/Design Total $22,500 Fuel Costs $8,000

Staff hours - Monitoring 500 Material costs $37,500

Staff hours - Engineering 500 Sumps $10,000 Landfill Cell, typical (sq. ft.) 10,000

Staff hours - Compliance 125 Total trench costs $134,250 Bridging Layer required, in feet 5

Staff hours - Operator 250 Costs per ton/year $3.16 Volume of Bridging Layer, in cu. Y 1851.9

Fuel costs $2,500 Compaction yield without sludge 1666.7

Monitoring assistance $25,000 FY2018-19 costs Leachate Hauling Compaction yield with sludge 1583.3

Staff costs $90,000 Annual leahcate, gallons 2,000,000 Lost tonnage due to sludge 83.3

Total GCS costs $284,375 Truck loads 556 Cost of lost tonnage, per day $2,583.33

Costs per ton/year $6.69 Fuel costs $16,667 Cost of lost tonnage, per year $790,500.00

Staff hours 833 Costs per ton/year $18.60

FY2018-19 costs Leachate treatment Staff costs $58,333

gals per year 2,000,000 Annual costs to handle $75,000.00

gals per month 166,667 Costs per ton/year $1.76

lbs expended/month 16,000

lbs in vessels 6,000

changeouts/month 2.67 FY2018-19 costs Biosolids Hauling

Annual cost to treat $249,600 Average annual charges $380,000

Costs per ton/year $5.87 Costs per ton/year $8.94

Calculations

Cost of Lost Airspace due to reduced compaction

Sludge - Cost Analysis Item #5

 

 

 

 

 

 

 

(This page intentionally left blank) 

Item #5