Linden, Union County, NJ · 2020–2021
Outpatient MRI suite replacement, Linden, NJ
Concord designed the HVAC and MRI support systems for the replacement of an outpatient MRI suite in Linden, New Jersey.
Case study · 2020–2021
RPZ for an apartment building with a restaurant, 1425 Third Avenue, Manhattan
Concord surveyed the water service at 1425 Third Avenue in Manhattan, an apartment building with a restaurant on the first floor, and took a new RPZ backflow preventer on the existing domestic service through NYC DEP approval.
The challenge
A restaurant inside a residential building makes the water use hazardous under DEP's cross-connection rules, so the domestic service needed a reduced-pressure-zone (RPZ) assembly. DEP's first review came back not approved: every service had to be protected, and DEP listed another active 1-1/2 in. domestic meter that had to be checked.
What Concord did
- Survey of the cellar water service and meter on October 9, 2020.
- Hazard assessment: hazardous, because of the mixed residential and restaurant use.
- A 1 in. lead-free RPZ designed for the existing domestic service in the cellar.
- DEP application and drawings submitted on October 31, 2020, sealed by a New York licensed Professional Engineer.
- Drawings and application revised for DEP's December 2020 comments and resubmitted on January 5, 2021.
Outcome
- NYC DEP approved the backflow prevention plan on January 13, 2021, 74 days after the first submission.
Project facts
- Location
- 1425 Third Avenue, New York, NY 10028
- Years
- 2020–2021
- Sector
- Mixed use: apartments over a first-floor restaurant (existing building)
- Trades
- Plumbing: containment backflow prevention (RPZ) and the NYC DEP filing
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