C.M.R. 65, 407, ch. 640, app 407-640-A

Current through 2024-25, June 19, 2024

Appendix 407-640-A - Method for Determination of Demand Based Fire Protection Charges

Step 1: Determine Total Revenue Requirement

1 From Rate Case Filing or Income Statement $1,750,080

Step 2: Determine Revenue Required From Municipal Fire Protection (T)

2 From Chapter 69 of PUC Rules $274,763

Step 3: Determine Municipal Fire Protection Demand Flow Requirements (C)

CustomerClass	Number of Hydrants	Demand Flow	Total Demand
GPM	GPM
Residential	343	500	17,500
Commercial	128	1,000	128,000
Industrial	68	1,000	68,000
Total	539	367,500 GPM

Step 4: Determine Private Fire Protection Demand Flow Requirements (D)

Private Fire Protection Class	Number of Services	Average Demand	Total Demand
GPM	GPM
Private Hydrants(a)	47	500	23,500
Sprinkler 0-99 GPM	26	80	2,080
Sprinkler 100-199 GPM	4	196	784
Sprinkler 200-399 GPM	130	200	26,000
Sprinkler 400-599 GPM	32	535	17,120
Sprinkler 600-999 GPM	3	881	2,643
Sprinkler 1000+ GPM	2	1,800	3,600
Total	244	75,727 GPM

(a) excludes the first hydrant with each sprinkler system

Step 5: Determine the Total Revenue Required from Private Fire Protection (P)

Formula: P= (T/C)*D

P = ($274,763/367,500) * 75.727 = $56,618

Step 6: Allocate Private Fire Protection Revenue Requirement Based Upon Average Demand

Private Fire Protection Class	Number of Services	Average Demand	Cost Per	Average Cost	Revenue Allocation
GPM GPM
Private Hydrants(a)	47	500	$0.747659	$373.83	$17,569.99
Sprinkler 0-99 GPM	26	80	$0.747659	$59.81	$1,555.13
Sprinkler 100-199 GPM	4	196	$0.747659	$146.54	$586.16
Sprinkler 200-399 GPM	130	200	$0.747659	$149.53	$19,439.14
Sprinkler 400-599 GPM	32	535	$0.747659	$400.00	$12,799.93
Sprinkler 600-999 GPM	3	881	$0.747659	$658.69	$1,976.06
Sprinkler 1000+ GPM	2	1800	$0.747659	$1,345.79	$2,691.57
Total	244	$56,618.00

(a) excludes the first hydrant with each sprinkler system

C.M.R. 65, 407, ch. 640, app 407-640-A