HomeMy WebLinkAbout25SITE2 - WPCA comments 03-21-2025Memorandum
Date: 3/21/2025
Project No.: 13848C
To: Ronald McDaniel, Montville WPCA Administrator
Derek Albertson, Montville WPCA Superintendent
From: Mariusz Jedrychowski, PE
Joe Hausman, PE
Tim Henry
Subject: Water and Sewer Utility Plans Review for 145 Route 32
The Montville WPCA has requested that Wright-Pierce assist in the review of the updated water and sewer utility
components of a proposed development. We received the following response documents for “Madison Place
Luxury Townhouse” development (Madison Place development) at 145 Route 32 in Montville prepared by Fuller
Engineering & Land Surveying, LLC for JNE Holdings, LLC:
Utility Plan (C-3.2) dated 3/20/2024
Utility Details (C-6.2 and C-6.3) both dated 3/20/2024
Sanitary Sewer & Water System Calculations dated 3/18/2025
Response to Comments Document dated 3/18/2025
This memorandum is a summary of our updated review and comments.
Water System Comments
The proposed 12”x2” water service connection includes a connection to the exiting water main on Powerhouse
Road with a tapping sleeve, gate valve and valve box. The proposed 2” water service line runs north from the
proposed Powerhouse Road connection, then branches off in two different directions to serve each side of the
development complex without looping. There is a single proposed service connection to each of the 11 townhouses
on site, each with its own isolation valve and water meter. Our review checked for adherence to the Town of
Montville Water Pollution Control Authority Specifications for the Installation of Watermains and Appurtenances
(WPCA Specifications). Based on this review we have the following comments:
1. Response: All comments from the current Fire Marshal have been addressed under previous comment
responses. – Please provide responses from Fire Marshal. We do not have record of this.
Sanitary Sewer Comments
The proposed sewer connection includes a PVC at a 3.4% slope from the connecting sanitary sewer manhole
located on Powerhouse Road. It is assumed that the sewers located on the developed parcel will be privately
owned and maintained.
1. Response: Sanitary sewer pipe sizes have been added to Sheet C-3.2 indicating 4” PVC laterals and a 6”
PVC main. – Please provide sanitary pipe sizes on plan sheet C-3.2. They have not been added on sheet C-
3.2.
Memo: Water and Sewer Utility Plans Review for 145 Route 32
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2. Response: No ground water was identified to 14 feet within the additional test pit areas within the
infiltrations system. It is our opinion the proximity of the sanitary main should not be of concern.
a. We agree that long term infiltration will not cause issues for the sewer main, as the main will be at
higher elevation than the infiltration basins, according to the provided plans.
b. However, this poses the reverse issue: in the event of sewer main leaks, water from the main can
enter and interact with the infiltration basins. We recommend a liner be placed around the
infiltration basins to mitigate this issue, but defer to Montville WPCA to make this decision.