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LPI ISSUES & inspections

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LPI ISSUES & inspections. Evaluates type of soil (drainage capabilities) Keeps system away from wells, water bodies. (setback requirements) Keeps system away from the water table, ledge and other restrictive layers (separation distances).

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why is a site evaluation needed to prevent contamination and health risks
Evaluates type of soil

(drainage capabilities)

Keeps system away from wells, water bodies.

(setback requirements)

Keeps system away from the water table, ledge and other restrictive layers

(separation distances)

Size of system– based on soil type and # of bedrooms.

Determines what type of system is best for property.

Why is a site evaluation needed?To prevent contamination and health risks


a site evaluation is needed for
A site evaluation is needed for;

All Newly Designed

Subsurface sewage disposal systems

Pit privies

Holding tanks

if the state and local plumbing inspector approval box is checked




the hhe 200 form
The HHE-200 Form
  • All boxes on the first page are checked
  • Signed by applicant or agent
  • 3 measurements from 2 ref. points or 2 measurements with a compass bearing
  • All setbacks are met if no variances are asked for
  • Permit application, give applicants copy back

Permit labels 

The label on the far left is the permanent record for the permit number, permittee’s name, date of issue and inspection, fee charged, and installer’s name.


Permit labels 

The center label is to be placed on the owner’s copy of the HHE-200 Form. It states that this has been permitted to install an onsite sewage disposal system.


Permit labels 

The two smaller labels on the far right are to be placed on the Town and State copy of the HHE-200 Form, respectively. These copies serve as permanent records of the design, but not of any subsequent inspections.


Vault Privies

Vault privies are permitted as “Alternative Toilets”.

The LPI can prepare an application for a vault privy by completing Page 1 of an HHE-200 Form.

why does a holding tank need a site evaluation but a vault privy doesn t
Why does a holding tank need a site evaluation but a vault privy doesn’t?
  • Holding tanks receive gray water as well as solids – Vault privies only receive solids
  • It has to be proven a property cannot produce the passable soils or other issues to retain a full system by a SE for a holding tank to be designed
  • Holding tanks are a last resort

Replacement Septic Tanks

If a replacement septic tank is being installed to serve an existing non-engineered disposal area, and there are no alterations proposed to the disposal area, no soil test is needed.

The LPI can prepare an application for a replacement septic tank by completing Page 1 of an HHE-200 Form.


Holding Tanks

Holding tanks require an HHE-200 Form and a completed holding tank pumper agreement (HHE-233) with an owner and municipality statement.

entire system is located by
Entire system is located by…
  • Elevation Reference Point (vertical measurements)

And the system ties which are:

  • 3 measurements from 2 or more known horizontal reference point
  • Or 2 reference point ties with compass bearings to 2 corners each
elevation reference point erp
Elevation Reference PointERP
  • Usually a nail in a tree with a bright orange ribbon
  • Easily visible
  • Usually that point will be 0 inches.
  • Anything below is a negative #, above is a positive #.
elevation reference points

Elevation Reference points

Measurements to:

Bottom of bed

Top of pipe

Finish grade

page 1 5 sec 111 7 preparation for inspection the installer shall
Page 1-5, sec:111.7Preparation for inspection.THE INSTALLER SHALL:
  • Arrange to enable the LPI to inspect all parts of the system
  • Have present the proper equipment for conducting the inspection
  • Furnish assistance as may be necessary
  • Page 8-1: Section 803.1

The installer of the system SHALL make certain that the system and all its component parts are installed in conformance with this code, the site evaluator plan and any special design requirements required by this Department

notification required
Notification required
  • LPI SHALL be notified at least 24 hours in advance
  • There is no time limit to inspect, use courtesy and inspect as soon as you can to not hold up the contractor



How many inspections are required?

the first inspection shall be made after site preparation to confirm that
The first inspection shall be made after site preparation to confirm that:
  • The disposal field is in the correct location
  • The vegetation has been cut and removed in the disposal field area
  • The area under the disposal field and fill extensions has been scarified
  • A transitional horizon has been established
  • The erosion and sedimentation control measures are in place
  • Bottom of bed elevation
  • 6-8 inches into original soil, footprint and fill extensions
  • Roto-tilled or teeth of a backhoe
transition horizon
Transition horizon
  • A minimum of 4” of backfill material mixed into scarified soil by plowing, disking or roto-tilling
  • HHE-200 form design may require more
  • This will be the bottom of the bed elevation
the second inspection shall be made after installation of the system components
The second inspection shall be made after installation of the system components
  • stone, pipes or proprietary devices
  • tanks, hay, filter fabric
  • curtain drains, diversion ditches
inspection 2
Inspection #2
  • Elevation for top of pipes or devices
  • Pipes or devices level, (2” within 100’)
  • Stone between ¾ & 21/2, or specified on design, clean & at least 1” over pipe
  • 2” compressed hay or a layer of filter fabric

Overlapping at least 6”

  • Septic tank and “d” box level
  • Pipe pitch from house to tank ¼ per foot
  • Pipe pitch from tank to field 1/8 per foot
No stumps, large rocks in any part of the system
  • Correct backfill material, usually gravely coarse sand
  • Minimum of 4 “ backfill over filter fabric-- hay or device
  • Minimum of 4” of loam over backfill
  • Any curtain drains or diversion ditches
  • Pumps/alarms working
the lpi inspects according to
The LPI Inspects according to;
  • The Rules & Regulations

( subsurface / Internal)

  • The HHE-200 Form ( Septic Design Permit)
  • The HHE-211 form ( Internal Plumbing Permit)
when inspecting a septic tank
When inspecting a septic tank
  • Its not backwards—(inlet is higher then outlet)
  • Bung hole is plugged
  • Level
  • The inlet pipe is not against the baffle
  • Baffles are in place
  • If filter is called for, it is installed
pump station
Pump station
  • Is used if the disposal field is higher then the tank
  • Must have an alarm on a float switch connected to the inside of the dwelling

(visual and audible)

With separate breakers then the pump circuit

pay attention to obvious signs
Pay attention to obvious signs



page 1 5 sec 111 8 covering of work
Page 1-5, sec:111.8Covering of work

No part of a system may be backfilled until it has been inspected and approved.

It SHALL be uncovered at the discretion of the LPI and the expense and risk of the homeowner

resolving violations complaints
Resolving violations - complaints
  • Investigate the situation

Is it a true complaint?

  • Evaluate the problem

Talk to the owner, what can be done?

  • Document…………Write a letter
  • Initiate corrective actions
investigative notes
  • Inspection Observations
  • Date, Time, Location
  • Parties present
  • Result of the inspection
  • Inspection form on page 15 of the Enforcement manual
corrective actions

Issue an oral notice of violation

Issue a stop work order

Issue a written notice of violation

violations of the rules during installation
Violations of the rulesduring installation
  • Issue a compliance order to the responsible party/stop work order

In coordination with the municipal attorney or if cert. in 80K, pursue resolution in court

malfunctioning system violations
Malfunctioning system violations

Written letter ordering repair / certified

2nd written letter / certified

Prepare and present all documentation to Municipal officials

Serve abatement order signed by officials to

responsible party

In the event nothing is done, municipality may cause it to

be fixed and recovering costs through court / taxes

the written violation should include
The written violation should include…
  • The violation
  • Penalties
  • Deadline date in which I shall be corrected

Right of entry:

1) For the purpose of enforcing the rules.

2) Proper credentials

If denied, the LPI may seek an administrative Inspection Warrant

page 1 1 sec 100 6 public sewer connection

Page 1-1, sec: 100.6Public Sewer Connection

When public sewers come within 200 feet of the premises served

Webster's Dictionary:

Premises -- Land and the building on it

page 1 6 sec 116 2 structures
Page 1-6, sec:116.2Structures

No portion of a structure SHALL be located on any part of a disposal field

  • Revised HHE-200 forms need not be permitted
  • State approval needs to be sent to the office before permitting
when sending in monthly permits
When sending in monthly permits
  • If it had a local or state variance, they need to be attached
  • All forms up to date
  • All signatures & dates
  • Local Plumbing Inspector
  • Site evaluator
  • Municipal
  • Homeowner
separation distances between disposal fields
Separation distances between disposal fields
  • Page 8-4: Section 808.1

2 disposal fields shall be separated by a minimum of 5 feet or ½ the width of the widest field

disposal field perforated piping
Disposal Field Perforated piping
  • Page 14-2: Section 1403.4
  • Perforations:

There SHALL be 2 rows of evenly spaced perforations running the length of the pipe.

The rows shall be at the 4 o’clock and 8 o’clock positions, hole size to be between

3/8 and 3/4 .

grey water systems need a septic tank

Grey water systems need a septic tank

Laundry disposal systems don't

Both may be designed and used for hot tubs and backwash

shall not be connected to a system
Shall not be connected to a system:
  • Roof Drains
  • Foundation Drains…if the system is properly sized & no potential hazardous materials
  • Chemicals other then household cleaners
  • Hot Tubes—but may discharge into a separate laundry system
replacement septic tanks
Replacement septic tanks
  • The old tank needs to be pumped out
  • Either removed or filled with sand/gravel


when doing inspections

When doing Inspections

Be prepared to see anything