Recommended number of water meters on a 1" line?

[JayHatCOB]

A downtown developer is wanting to install (7) residential apartments and (2) businesses in a recently renovated building downtown. The main waterline is across the 25'-wide street but there are (2) 1" PE service taps in front of the building.

My question: Are the (2) 1" lines sufficient enough to handle the (9) total customers or am I looking at opening up the street in order to install a new 2" line? Could the (7) apartments be served off of (1) tap the the (2) businesses off the other? The static pressure in the area is just above 70 psi. The main waterline across the street is 12" in diameter.

 

[cvg]

I suspect that the water department may have a policy regulating this. 1" taps are often required for single family residence lots and 3/4 inch for landscaping only. Manifolding of more than two meters may not be allowed

for example:
1” meter size
maximum gpm 40
max flush tank fixture units 86
max flush valve fixture units 28

 

[bimr]

I agree with cvg. You will have to run this question by the AHJ in the plumbing department at the municipality. Most water departments require an individual water service per residence or business and have Code requirements similar to the following:

"Any house or building constructed within the Village of XXXX or constructed outside of the Village and using Village of XXXX water must have installed a water service of the appropriate size and a meter that will service each individual, house or building located upon any newly constructed property. Water service shall only have a single meter connected and no multiple meter application on a single service shall be allowed.

New installations of water service pipe and fittings shall be at least (1) inch diameter. If flushometers or other devices requiring a higher rate of water flow are used, the water service pipe shall be designed and installed to provide this additional flow"