Title 5 on Cape Cod and the South Shore: the inspection, the four results and what happens after

Title 5 is the Massachusetts septic code, 310 CMR 15.000, and its inspection rule is why almost every house sale on Cape Cod and the South Shore begins with a septic report. A MassDEP-approved System Inspector must evaluate the system within 2 years before a transfer of title, the result is one of four findings, and a failed system carries a 2-year upgrade deadline. This guide walks through each step with the section cited, then covers cesspools, the 2023 nitrogen rules, the money programs and what a buyer should ask.

The regulation behind the septic report: 310 CMR 15.000

Title 5 is the state environmental code for on-site sewage disposal, written by MassDEP under M.G.L. c.21A §13 and currently in the version amended effective July 7, 2023 (official text). It governs how a system is designed, built, inspected and upgraded, and your town’s board of health enforces it.

Three sections matter most to a homeowner: 15.301 says when an inspection is required, 15.303 lists the pass and fail criteria, and 15.305 sets the deadline to fix a failure. Around them sit the permit rules (15.020 and 15.021), the design rules (15.203 and 15.212) and, from 2023 onward, the nitrogen rules for Cape Cod watersheds (15.214 and 15.215). Towns may add stricter local regulations, and on the Cape many do; Mashpee and Falmouth are two examples.

When the report is due, and which transfers are exempt

Under 310 CMR 15.301(1) the system must be inspected at or within 2 years before the transfer of title, and the buyer must receive the full report. If frozen ground or snow makes the inspection impossible before closing, it may be done as soon as weather allows and no later than 6 months after the transfer (MassDEP guide).

A sale is not the only trigger. An inspection is required before any change in use or increase in design flow, such as an added bedroom, and a cesspool or failing system must be upgraded before that change (15.301(5)). Shared systems and condominiums of 5 or more units are inspected every 3 years. Foreclosures, tax takings and bankruptcy transfers get 2 years before or 6 months after; an inherited house gets 1 year after the executor is appointed; a life estate gets 6 months after the life tenant dies (15.301(3)). Boards of health, MassDEP and courts can order one at any time.

Some transactions are not transfers at all under 15.301(2): granting a mortgage, refinancing, moving the house into an LLC or trust with the same beneficial owners, adding or removing a spouse, and changing a guardian, conservator or trustee. Others are exempt under 15.301(4). MassDEP’s exemption guidance covers transfers of a residence between spouses, between parents and children (including adopted and step-children), between full siblings, and into a trust with a first-degree relative as beneficiary. A system with a Certificate of Compliance issued within 2 years is exempt, or 3 years with annual pumping; so is a sale where a party has signed an enforceable agreement with the board of health to upgrade or connect within 2 years after transfer. The do I need a Title 5 tool runs these one at a time.

Only an approved System Inspector can sign the form

Only a MassDEP-approved System Inspector may perform a Title 5 inspection, and the report must be on MassDEP’s official form. NEIWPCC keeps the searchable lists of approved inspectors and soil evaluators, marked current as of September 10, 2026 (NEIWPCC listings).

MassDEP tells homeowners to ask for the approval number and check it against that list, and notes that approval can be revoked for a falsified form and that inspectors are not required to carry liability insurance (hiring guide). Suspected fraudulent inspections go to the Environmental Strike Force at 617-556-1000. Towns add gates of their own: Pembroke rejects a report where the inspector did not notify the board in advance, and Mashpee requires failures to be field-verified by a board agent. The Title 5 inspection service page explains how to check the inspector you hire.

Tank, D-box, field and setbacks: what gets opened and measured

The inspection compares the system against the criteria in 310 CMR 15.303. Before the visit the inspector should pull the design and as-built plans, about 3 years of pumping history, any Certificate of Compliance and any prior water tests from the board of health (official form).

On site, the tank is opened and its walls, baffles or tees and liquid level checked, with material and age noted. The distribution box is opened and its liquid level compared with the outlet pipe. The leaching area is probed for ponding, surfacing effluent, damp soil and depth to groundwater, and distances to wells, surface water and wetlands are measured. Most inspectors pump the tank to see the walls, which adds $250 to $500. The visit runs 1 to 3 hours, and the report must reach the board of health within 30 days; failing to file creates a presumption that no inspection was done (15.301(10)-(11)). The inspection checklist guide tells you what to have ready.

Two years, or three with pumping receipts

A passing report can be used for a transfer within 2 years of the inspection date. It stretches to 3 years with pumping records showing the tank was pumped at least once a year during that period, and one report covers more than one transfer inside its window (15.301(1)).

The receipts must show the date and gallons and come from a board-of-health-permitted hauler. A report is also overtaken by events: an added bedroom, a board order or a visible failure means a new inspection regardless of the date on the old one. The validity guide covers inherited homes, condominiums and a buyer’s view of a report that is 20 months old.

Reading the result on the official form

The official form has four findings, and each means something different for a closing. The inspector must also list any criterion that could not be evaluated, such as a distribution box that could not be found; a buyer should read that as an open question rather than a pass.

When the form says “Passes”

None of the failure criteria in 15.303 or 15.304 was present on the day. The report can be used for any transfer in the next 2 years, or 3 with annual pumping. It is not a warranty: it says nothing about how many years a 30-year-old leaching area has left, which is why buyers ask about age and pumping history alongside the result.

When it says “Conditionally Passes”

The system will pass once a named repair is made: a metal tank over 20 years old or any structurally unsound tank must be replaced; a dead pump or alarm must be fixed; a backup or high level in the distribution box caused by a broken pipe or a settled box must be repaired; pumping more than 4 times a year caused by a broken pipe must be corrected. Leaching areas and cesspools cannot be conditionally passed. For a closing this is usually the good news: a tank swap runs about $4,000 to $8,000 and a distribution box repair $1,000 to $5,000, each with a construction permit and a Certificate of Compliance. The failed Title 5 repair page covers the common items. Pembroke requires the repair before transfer.

When it says “Further Evaluation Required by the Board of Health”

The system sits close to water: a cesspool within 50 feet of surface water or a wetland, or a leaching area within 100 feet of a surface water supply, inside Zone I of a public well, or within 100 feet of a private well (50 to 100 feet requires a test for fecal coliform, ammonia and nitrate). The board of health decides pass or fail after weighing the site, the design and the results. For a closing, ask the health office how it handles these and how long a decision takes.

When it says “Fails”

Upgrade is required. The criteria include sewage backing up into the building, effluent surfacing in the yard, a liquid level in the distribution box above the outlet, a cesspool with liquid within 6 inches of the inlet, pumping more than 4 times a year for reasons other than broken pipes, a cracked tank or a metal tank without a 20-year Certificate of Compliance, and any part of the leaching area below high groundwater. A failed leaching area usually means a new system, which is a full replacement at $20,000 to $40,000 on the Cape.

Twenty-four months to upgrade, and how that clock can stretch

A failed system must be upgraded within 2 years of the discovery of the failure, in practice the inspection date, unless the board of health or MassDEP sets a shorter deadline because of an imminent health threat (310 CMR 15.305). The clock does not restart when the house sells; a buyer inherits whatever is left of it.

Longer schedules exist. Under an enforceable upgrade schedule the owner can get more time by committing financially to connect to sewer or a shared system within 5 years and taking interim measures such as regular pumping; MassDEP may allow longer where a town shows a funded sewer construction schedule. That is how Barnstable handles failed systems on streets where the pipe is a year or two away. When a sewer does become available, the system must be abandoned and the building connected (15.305(4)).

Closing with a failed report: repair, escrow or an upgrade agreement

Nothing in Title 5 requires a passing inspection for title to pass, and no state law makes the seller fix the system before closing (CCIAOR legal hotline). The failed report must be handed to the buyer, and because it is filed with the board of health it is public. From there the parties have three routes.

The seller can repair or replace before closing, which is cleanest for the buyer’s lender but takes 3 to 4 months in an ordinary case. The parties can use an escrow holdback: lenders that allow one commonly require 150% of the estimated cost to be held by the closing attorney from the seller’s proceeds, with release after board of health sign-off and a final inspection; not every lender permits one (Bill Gassett, updated July 2025). Or the buyer or seller signs an enforceable agreement with the board of health to upgrade or connect within 2 years after transfer, which must be disclosed and binds later owners. Who pays is negotiation, not law, unless the system was misrepresented. The selling with a failed Title 5 guide puts each route on a calendar.

Cesspools under the state code and under town rules

A cesspool is a pit with open joints or holes that receives raw sewage, and Title 5 classifies it as a nonconforming system (15.002). Under the state code it is not an automatic failure: it fails only on the hydraulic and location criteria in 15.303, and it must be upgraded before any change of use or added flow.

Towns go further. Mashpee’s health FAQ states that cesspools are an automatic failure at inspection (Mashpee); Pembroke, Wareham, Duxbury and Eastham fail or require replacement of a cesspool when the property is conveyed; Plymouth is reported to do the same, though the town text could not be verified. A conversion is a new Title 5 system plus pumping, crushing and filling the old pit, so it costs what a replacement costs, about $20,000 to $35,000. The cesspool guide and the cesspool replacement page have the town-by-town detail.

The 2023 nitrogen amendments and a replacement in 2026

On July 7, 2023 MassDEP designated 30 Cape Cod watersheds with nitrogen limits as Natural Resource Area Nitrogen Sensitive Areas, later adding Wellfleet Harbor for 31, and required existing systems in them to upgrade to Best Available Nitrogen Reducing Technology within 5 years unless the town filed a notice of intent, a watershed permit application or a de minimis application within 2 years (15.215).

Every Cape town with a designated watershed filed by the July 7, 2025 deadline, according to MassDEP’s application table dated June 11, 2026, so the 5-year clock never started anywhere on the Cape. Stated precisely: the state mandate is suspended while each town stays on its approved schedule; if a town misses that schedule MassDEP can notify it and the clock begins for owners in the affected watershed. The would-be deadline of July 7, 2030 is not operative today. No Plymouth County watershed was designated.

For a homeowner replacing a failed system in 2026, the state rule alone still allows a conventional Title 5 system inside a nitrogen sensitive area. Local rules can require more: Falmouth’s FHR 15.15, effective November 15, 2025, requires 10 mg/L total nitrogen for new construction, raze-and-rebuilds and added bedrooms in its nitrogen areas (Falmouth); Mashpee has required denitrifying units within 1,000 feet of water bodies from 2000 onward. Sellers inside any NSA must disclose it and any upgrade requirement before transfer (15.215(4)). A nitrogen-reducing I/A system costs about $30,000 to $40,000 installed and needs an operating contract; the nitrogen rules guide has the town list and the approved technologies.

Paying for it: the credit, AquiFund and the South Shore programs

Two programs carry most of the cost for an owner-occupant in Barnstable County, and Plymouth County has its own set. Program terms are set by the agencies and change; confirm with the state or county page linked here.

The 60% state credit, up to $18,000

For tax years beginning on or after January 1, 2023, M.G.L. c.62 §6(i) returns 60% of eligible costs on up to $30,000 of expenses, a lifetime maximum of $18,000, claimed at no more than $4,000 a year with unused amounts carried forward 5 years (Mass.gov credits page; TIR 24-4). The owner must occupy the property as a principal residence; second homes and rentals do not qualify. The work must be the repair or replacement of a failed system or something Title 5 requires. For tax years beginning January 1, 2024 the credit also covers BANRT upgrades required under 15.215 and sewer connections required by a watershed permit (TIR 24-14). Before 2023 the figures were 40%, $15,000, $6,000 and $1,500 a year; many town pages still quote them. The tax credit guide has the Schedule SC detail.

AquiFund at 0% to 5% in Barnstable County

Barnstable County’s Cape Cod AquiFund lends for septic repairs, replacements, cesspool upgrades and I/A systems at 4%, or 5% if the property is a rental, seasonal home, condominium or is listed or expected to list within 12 months; income-qualified owner-occupants connecting to new sewer pay 0% or 2% (AquiFund). Terms run up to 20 years, repaid as a betterment on the tax bill and recorded at the Registry of Deeds. A complete application with a contractor bid, the latest federal return and a mortgage statement can be processed in as little as 48 hours; the program line is (774) 330-3010. The AquiFund guide covers the mechanics.

Plymouth County: town loans and MassHousing

AquiFund stops at the county line. The Town of Plymouth runs a Title V Septic Loan Program at 5% over 5, 10 or 15 years, up to $30,000, for owner-occupied homes with a documented failure (application package). Other South Shore boards of health run their own betterment loans; check with the town. MassHousing’s Septic Repair Loan lends up to $25,000 through participating banks for owner-occupied 1-4 family homes (MassHousing). The state credit applies in both counties.

From soil evaluation to Certificate of Compliance

No one may build, upgrade or expand a system, or replace a single component, without a Disposal System Construction Permit from the board of health, and no sewage may go to the new system until a Certificate of Compliance issues (15.020; 15.021). The path has five steps and takes about 3 to 4 months in a normal case.

A MassDEP-approved Soil Evaluator digs test pits and runs a percolation test with the board present (15.018, 15.104). An engineer designs the system at 110 gallons per day per bedroom (15.203) with the leaching area at least 4 feet above high groundwater, or 5 feet in the fast sands that cover most of the Cape (15.212); on a tight lot the board can grant a Local Upgrade Approval that relaxes setbacks, separation and field size to the least degree necessary (15.405). The board issues the permit, valid 3 years with one 1-year extension. A contractor holding the town’s installer’s permit builds it, with the board inspecting before backfill, and the Certificate of Compliance issues once the installer and designer certify the work matches the plan. The design and soil evaluation page and the replacement timeline guide put dates on each step.

Reading a seller’s report as the buyer

Ask for the full report, not the summary page, and read the age of the tank and leaching area, the pumping history, the bedroom count the system was designed for, and any criterion marked as not evaluated. A 4-bedroom listing on a 3-bedroom system is a problem you inherit, since design flow is 110 gallons per bedroom and a bedroom is any 70-square-foot room with a window that is not a kitchen, bath or living room.

Then check three things outside the report. Look up the address on MassDEP’s NSA map, linked from the 310 CMR 15.000 page, and get the seller’s written disclosure if it is inside one. Ask the DPW where the parcel sits on the sewer phase map, because a new owner in Barnstable must connect within 6 months of notice and pay an assessment of up to $10,000. If the system is an I/A unit, ask for the operating contract and the last year of sampling results. The buyer’s guide has the full list of questions and a budget.

Your first three calls

If you are selling, book the inspection when you decide to list, not when you accept an offer; scheduling takes days to two weeks in season, and a conditional-pass item found in February is fixed before a spring buyer sees it. Ask the health office for the as-built and pumping history at the same time.

If you are holding a failed report, start the design now, because the 2-year clock is already running, and call the county or town loan program before you sign a contract, since a bid is what it needs. The contractor you hire should be able to say within a site visit whether a component repair or a full upgrade is in front of you, and quote the replacement if it is the latter. If you are buying, order the town records before the inspection contingency expires. The cost estimator gives a range for your lot before the first call.