DEP Filing Services in NYC
Building Violations Solutions prepares and files DEP applications for sewer and water connections, backflow prevention, grease interceptors, and stormwater plans. We coordinate with DEP borough offices and licensed master plumbers, and clear the DEP approvals your DOB permits depend on. Free consultation.
Sewer, Water, Backflow & Stormwater Filings — Done Right
Whether you're connecting a new building to the city mains, extending a water service, installing a required backflow device, or getting a stormwater plan approved, BVS handles the DEP filing end to end. We prepare the application package, coordinate with your licensed master plumber, submit to the correct DEP borough office, and push each case through review to approval. Because DOB permits and sign-offs routinely depend on DEP approvals, we keep both tracks aligned so your project isn't held up.
How DEP Filing Works
A DEP filing is a multi-step process: determine the correct application type, prepare the plumber-certified plans and supporting documents, submit to the DEP borough office, resolve any objections, and secure approval — then coordinate inspection and sign-off where required. Miss a step or file an incomplete package and the application stalls, holding up the DOB permits that depend on it.
Need a DEP filing for your project?
Contact BVS for a free consultation. We'll identify the DEP applications your project needs, coordinate the licensed plumber, and outline the fastest path to approval.
New to DEP filings?
Read our DEP Filing Guide — what DEP filings are, when they're required, the main filing types, and how the borough office review process works.
Why DEP Filings Trip Up Projects
They Gate Your DOB Permit
DOB frequently won't issue a permit or grant final sign-off until the underlying DEP approval — for the sewer/water connection, backflow device, or drainage plan — is on file. A stalled DEP filing stalls the whole project.
Licensed Plumber Required
Sewer, water, and backflow filings must be prepared and certified by a licensed master plumber. Coordinating the plumber's drawings with the DEP application correctly the first time avoids costly rejections.
Borough Office Nuances
DEP review runs through borough offices, each with its own workload and expectations. Knowing what each office wants to see keeps a site connection proposal or stormwater plan from bouncing back on objections.
Recurring Compliance
Backflow prevention (RPZ) devices require an approved plan and an annual test report filed with DEP every year. Missing the recurring filing can lead to notices and put your water service at risk.
How BVS Handles Your DEP Filing
Scope & Filing Strategy
We review your project — new construction, alteration, or a DEP notice — and identify every DEP application it triggers: site connection proposal, water tap, backflow device, grease interceptor, or stormwater plan.
Plumber Coordination & Prep
BVS coordinates with your licensed master plumber, assembles the certified plans and supporting documents, and prepares a complete DEP application package built to clear review the first time.
Submission & Objection Response
We file with the correct DEP borough office, track the case, and respond quickly to any objections — keeping the application moving instead of sitting in the queue.
Approval, Inspection & Sign-Off
Once approved, we coordinate any required inspection and sign-off, confirm the DEP approval is on record, and align it with the DOB permits and approvals that depend on it.
Related Services & Resources
DEP Filing Guide
What DEP filings are, when they're required, and how the borough office review process works.
All NYC Agency Filings
Our full filing service across DOB, FDNY, HPD, DOT, DEP, and more — every project type.
Permit Expediting
We push filings and permits through every agency — including the DEP approvals your DOB permit depends on.
Project Coordination
Multi-agency projects kept in sync — DEP, DOB, and beyond — so approvals land in the right order.
Frequently Asked Questions
What is a DEP filing in NYC?
A DEP filing is an application submitted to the NYC Department of Environmental Protection — the city agency that runs the water and sewer system — to authorize work such as a sewer or water main connection, a water tap, a backflow prevention (RPZ) device, a grease interceptor, or a stormwater/drainage plan. BVS prepares these applications, coordinates with a licensed master plumber, and shepherds them through the appropriate DEP borough office to approval.
When do I need a DEP filing for my project?
You need a DEP filing whenever your project touches the public water or sewer system or the city's environmental controls — new or altered house/site sewer and water connections, water main extensions or taps, backflow prevention devices on the domestic or fire line, grease traps and interceptors, and stormwater or site drainage plans. Many DOB permits cannot be issued or signed off until the underlying DEP approval is in place.
What is a Site Connection Proposal (SCP)?
A Site Connection Proposal, sometimes called a house/site connection proposal, is the DEP application that authorizes connecting a property's sewer and water service to the city's mains. It documents pipe sizes, connection locations, and how sanitary and storm flows are handled. BVS prepares the SCP package, coordinates the plumber's drawings, and files it with the DEP borough office for review and approval.
How long does a DEP filing take to get approved?
Timelines vary by filing type, borough office workload, and how complete the initial submission is. Straightforward backflow or tap filings move faster than a full site connection proposal or stormwater plan, which involve more detailed review. The biggest driver of delay is objections from an incomplete package — BVS files complete applications the first time and responds to DEP objections quickly to keep the case moving.
Do I need a backflow prevention device filing?
If your building has a condition that could allow contaminated water to flow back into the public supply — a boiler, cooling system, irrigation line, fire line, or certain commercial equipment — DEP typically requires an approved backflow prevention (RPZ) device, plans filed by a licensed professional, and an annual test report submitted each year. BVS files both the initial device plans and the recurring annual test filings.
How does a DEP filing relate to my DOB permit?
DEP and DOB are separate agencies with separate approvals, but they are linked. DOB frequently will not issue a permit or grant final sign-off until the corresponding DEP approval — for the sewer/water connection, backflow device, or drainage plan — is on file. BVS clears the DEP approvals that your DOB permits depend on so the two tracks stay aligned.
Can BVS resolve an illegal connection notice from DEP?
Yes. If DEP has flagged an unpermitted or illegal sewer, water, or drainage connection, BVS documents the existing condition, prepares the corrective filing, coordinates the licensed master plumber, and works with the DEP borough office to legalize the connection and clear the notice.
Ready to Get Your DEP Filing Started?
Contact BVS today for a free consultation, or call (212) 292-7900. We'll identify the DEP applications your project needs and clear the approvals your permits depend on.