(A) Estimated annual operation and maintenance costs.
Operation | Cost |
Administration | $0 |
Labor | $2,500 |
Materials and repair | $1,000 |
Sampling and monitoring | $100 |
Contingency | $360 |
TOTAL | $3,960 per year |
(B) Estimated replacement costs for system.
Description | Cost |
Description | Cost |
Piping (assume 22,000 L.F. at $15) | $330,000 |
Manholes (assume 10 at $1,000) | $10,000 |
Lagoon (assume 450,000 at $0.20) | $90,000 |
SUBTOTAL | $430,000 |
CONTINGENCY (10%) | $43,000 |
TOTAL | $473,000 |
Assume useful life of 50 years; thus | $9,460 per year |
(C) Current average flow per residence.
80 gpcd x 30 days per month x 575 people / 275 households = 5,018 gallons per month per house |
Use 5,000 gallons per month per house |
(D) Current flow from other users.
Description | Flow Amount (Gallons) |
Total water used for average month | 1,513,000 |
Average residential use (4,500 x 275) | 1,237,500 |
Non-residential use | 275,500 |
(E) Monthly water use costs.
Monthly O and M replacement (total) | 1,118 |
= 0.74 | |
Monthly water usage (total) | 1,513,000 / 1,000 gallons |
Use 0.75 per 1,000 gallons |
(F) Monthly rate schedule.
Residence 5,000 gallons per month per household x 0.75 / 1,000 gallons | Use $3.75 |
Non-residence (same as residence up to 5,000 gallons) | Use $3.75 |
Additional usage for non-residence over 5,000 gallons | Use $0.50 per 1,000 gallons |
(G) Annual revenue.
Residential and non-residential up to 5,000 gallons | |
275 residences x $3.75 per month per residence x 12 months | $12,375 |
Non-residential over usage | |
275,000 gallons per month x $0.50 / 1,000 gallons x 12 months | $1,650 |
TOTAL ANNUAL REVENUE | $14,025 |
(Ord. 213, passed 4-7-1987; Res. 04-07-87-01, passed 4-7-1987)