Township of East Amwell, NJ
Hunterdon County
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Table of Contents
Table of Contents
[HISTORY: Adopted by the Board of Health of the Township of East Amwell 11-17-1998 by Ord. No. 98-02BH; amended in its entirety 11-20-2006 by Ord. No. 06-01BH. Subsequent amendments noted where applicable.]
GENERAL REFERENCES
Land management — See Ch. 92
Fees — See Ch. 149, Art. I.

§ 176-1 Purpose and authority.

A. 
It has been shown that groundwater supply and well performance vary widely in East Amwell Township and surrounding municipalities depending on geological and hydrological factors.
B. 
East Amwell Township depends upon groundwater as its sole water resource. Therefore, a prudent municipal Board of Health must act in a responsible fashion to protect this essential resource for present and future generations pursuant to N.J.S.A. 26:3-31a and 58:11-23 et seq.
C. 
This chapter is designed:
(1) 
To ensure that new and altered wells constructed in East Amwell Township will produce sufficient volumes of water to serve their intended use and to maintain acceptable standards of hygiene and sanitation;
(2) 
To ensure that new wells do not unduly infringe upon the performance of existing wells; and
(3) 
To collect data and information about the several groundwater aquifers in East Amwell Township in order to determine prospects of groundwater supply for existing and potential uses.

§ 176-2 Incorporation of state standards by reference; higher standards to prevail.

The following standards are hereby incorporated and made part of this chapter by reference: New Jersey Safe Drinking Water Act (N.J.S.A. 58:12A-1 et seq.) and N.J.A.C. 7:10-1 et seq. If there are conflicts between any part of this chapter and any other applicable law, the more stringent of the two shall apply.

§ 176-3 Definitions.

As used in this chapter, the following terms shall have the meanings indicated:
ADMINISTRATIVE AUTHORITY
The local Board of Health having jurisdiction or the authorized agent of the administrative authority acting on behalf of the administrative authority.
ADVANCE NOTICE OF TEST DATES
Communications in writing or by telephone with the secretary of the administrative authority or with a field witness designated by the administrative authority. Messages left on answering machines are not binding advance notices.
ALTERATION
Any physical change in the well and water supply distribution system, including deepening, modification, removal, adding additional water distribution lines, change of use and additional use. The term "alter" shall be construed accordingly. Hydrofracturing shall be considered an alteration if it is not carried out as part of the construction of a new well. Replacement of pumps, installation of pitless adapters or extension of the well casing above grade to conform with the state code shall be considered repairs and not alterations.
APPROVED
Accepted or approved under applicable specifications stated or cited in this chapter, or accepted as suitable for the proposed use under procedures and powers of administration delegated in this chapter, and the word "approval" shall be construed accordingly.
AUTHORIZED AGENT
Any qualified person who is delegated to function within specified limits by the administrative authority.
AVAILABLE DRAWDOWN
The distance between the static water level and a water level five feet above the pump intake.
BEDROOM
Any room within a dwelling unit, finished or unfinished, which may reasonably be expected to serve primarily as a bedroom or dormitory. The term "bedroom" shall be considered to include any room or rooms within an expansion attic.
CERTIFICATION
A written statement by the administrative authority attesting that the water supply facilities for the proposed realty improvement are in compliance with the requirements of this chapter.
COMMERCIAL WATER USE
The use of well water as an integral part of a commercial operation (e.g., landscaping, restaurants, laundries or car washes) but not the incidental well water use associated with commercial operations.
CONSTANT RATE TEST
A pumping test conducted upon the well so that discharge remains constant with time.
CONSTRUCT A WELL
Creating physical access to groundwater-bearing strata for the purpose of providing a water supply.
DEVELOPMENT
The division of a parcel of land into two or more parcels, the construction, reconstruction, conversion, structural alteration, relocation or enlargement of any building or structure, any mining excavation, landfill or recreational facility and any use or change in the use of any building or other structure or land or extension of use of land.
DRAWDOWN
A decline in the water level in a well measured from the static level.
DRILLING DISCHARGE TEST (commonly known as "BLOWING THE WELL")
An estimation of a well yield by measuring the discharge rate from the well bore during the drilling operation as described in § 176-9.
GPM
Gallons per minute.
INTERFERENCE TEST
Performing measurements of water levels in designated observation wells to determine the change in water levels from those measured immediately prior to commencement of the well tests.
MAJOR SUBDIVISION
Any subdivision not classified as a minor subdivision.
MINOR SUBDIVISION
A subdivision of land that creates no more than two new lots plus lands remaining.
NEW WELL
A newly constructed, altered or an existing well prior to its certification for a new or expanded use.
NONRESIDENTIAL WATER USE
Any use of water not related to residential use, including commercial water use, industrial water use and agricultural water use.
OBSERVATION WELL
Any nonpumped well utilized to obtain water level measurements during interference testing.
PEAK DEMAND RATE
The average rate of discharge of water from a well, in gallons per minute (GPM), during peak demand periods. The peak demand rate equals the sum of the number of full bathrooms in the residence multiplied by three GPM, plus the number of half bathrooms multiplied by 1.5 GPM with a maximum peak demand rate of nine GPM.
PEAK DEMAND TEST
A pumping test conducted upon a well to evaluate its capability to supply peak demand needs. The test is conducted at a rate equal to or greater than the peak demand rate to deliver at least the peak load. This test has been described in detail by J.L. Hoffman and R. Canace in "Two-Part Pump Test for Evaluating the Water-Supply Capabilities of Domestic Wells" - New Jersey Geological Survey Groundwater Report Series No. 1-1986.
PEAK DEMAND TIME
The duration of time, in minutes, during which the peak demand rate is exerted on a well by a home. Peak demand time is computed in the following manner:
Peak Demand Time(minutes) = (100 gallons x number of bedrooms)/(3 GPM x number of bathrooms)
= Peak load (gallons)/Peak demand (GPM)
PEAK LOAD
The volume of water, in gallons, required during each peak demand period. Residential peak load is equal to the number of bedrooms in the residence multiplied by 100 gallons.
POTABLE WATER
Water free from impurities in amounts sufficient to cause disease or harmful physiological effects and conforming in its bacteriological and chemical quality to the requirements of the New Jersey Drinking Water Act regulations.
REALTY IMPROVEMENT
Any proposed new residence or other building, the useful occupancy of which requires the installation or erection of a water supply system. Each family unit in a proposed multiple dwelling shall be construed to be a separate realty improvement.
REPAIR
To fix, refurbish or replace one or more components of a water supply system in a manner that will restore and preserve the original location, design, construction and installation of the system.
RESIDENTIAL REPLACEMENT WELL
A well constructed to substitute for an existing residential well that has failed to provide sufficient water to adequately supply its existing residence or to provide water of potable quality.
RESIDENTIAL WELL
A well used for residential use which can include farming and livestock.
[Added 12-16-2014 by Ord. No. 14-02BH]
SPECIFIC YIELD or SPECIFIC CAPACITY
The rate of discharge of a water well per unit of drawdown, commonly expressed in gallons per minute divided by feet of drawdown (GPM/ft).
STATIC WATER LEVEL
The water level in the well either before or after pumping when all drilling and pumping effects on the aquifer have dissipated and the well is in equilibrium with atmospheric pressure.
SUBDIVISION
The division of a lot, tract or parcel of land into two or more lots, tracts, parcels or other divisions of land for sale or development.
TEST WELL
A well subjected to the drilling discharge test, to the residential three-part pump test in § 176-10, the subdivision site plan approval three-part aquifer tests in § 176-11, or to the nonresidential pump test in § 176-12.
THREE-PART PUMP TEST
The sequence of peak demand test, constant rate test, and well recovery test as described in § 176-10 for residential wells.
THREE-PART AQUIFER TEST
The sequence of background test, constant rate test and recovery test as described in § 176-11 for subdivision site plan approval and in § 176-12 for nonresidential wells.
WELL
An artificial excavation that derives water from the interstices of the rocks or soils which it penetrates.
WELL RECHARGE or WELL RECOVERY
The inflow of groundwater into a well from the aquifers in which the well is drilled.
WELL YIELD
The demonstrated rate at which water can be withdrawn indefinitely from the well.

§ 176-4 (Reserved)

§ 176-5 Well permits.

A state well permit is a prerequisite to the issuance of any well permit by the administrative authority under the terms of this chapter. No person shall locate, construct or alter any water well within East Amwell Township until a permit for the location or construction of such well has been issued by the administrative authority. Other modifications for repairs shall not require a well permit from the administrative authority.

§ 176-6 Certification.

[Amended 12-16-2014 by Ord. No. 14-02BH]
A. 
All new or altered water wells constructed in East Amwell Township and subject to Township well permits shall be approved by the administrative authority prior to use, after passing the requirements of the drilling discharge test as described in § 176-9, the residential three-part pump test as specified in § 176-10, the three-part aquifer test for subdivisions in § 176-11, or the nonresidential three-part aquifer test as specified in § 176-12, as applicable. All new or altered water wells that are subject to the three-part pump test and are located in proximity to existing producing water wells shall undergo the well interference test as specified in § 176-13 to the satisfaction of the administrative authority or its agent before certification.
B. 
Existing water wells will require Township recertification for any increase in water usage of 20% or more over its certified capacity, or if not certified, at 20% increase over its present use. Examples of activities that would result in a water usage increase include but are not limited to adding a bedroom, adding livestock water requirements, and adding irrigation. The administrative authority reserves the right to require recertification for an increase under 20% if there is evidence of potential interference with neighboring water wells.
C. 
For residential replacement wells, the requirement for three-part pump tests can be waived provided there is no increased use beyond prior or certified use. Such residential replacement wells will be certified as to their actual yield measured by the drilling discharge test as specified in § 176-9.

§ 176-7 Applicability.

[Amended 12-16-2014 by Ord. No. 14-02BH; 12-15-2015 by Ord. No. 15-01BH]
A. 
General.
(1) 
The well performance requirements and the well interference requirements contained in this chapter shall be applicable to any well construction or alteration in all areas of East Amwell Township if not specifically exempted in other sections of this chapter.
(2) 
The provisions of this chapter shall apply to all applications to the administrative authority for:
(a) 
Approval as to suitability for subdivision as specified in § 176-7C with the exception of subdivisions performed solely for the purpose of merger, boundary adjustment or agricultural partition;
(b) 
Certification of proposed water supply prior to issuance of a construction permit to construct one or more dwelling units or any nonresidential facility; and
(c) 
Certification of proposed water supply prior to issuance of a construction permit for a change in use or expansion of an existing use requiring additional water.
(3) 
Any such application submitted to the administrative authority for approval or certification shall be made on forms prescribed by the administrative authority and shall include but not be limited to all data as specified by this chapter and by N.J.A.C. 7:10-1 et seq.
(4) 
Any such application shall include a plot plan showing the location of all new wells, the location of all preexisting wells, the location of all existing subsurface disposal areas and the location of, and test results for, soil tests for potential subsurface disposal areas within the distances shown in Table 8-A of § 176-8A below.
(5) 
Any such application shall include the technical specifications for new wells as required in properly executed Forms DWR-138 "Well Record" as issued by the New Jersey Department of Environmental Protection.
B. 
Existing lots. Certified wells shall be required for all new construction proposed on existing lots and requiring a water supply before a construction permit can be issued, renewed or extended. These wells must fulfill the requirements of the drilling discharge test as specified in § 176-9, the residential three-part pump test as outlined in § 176-10 for residential development, the subdivision three-part aquifer test as outlined in § 176-11, or the nonresidential three-part pump test as outlined in § 176-12. Both residential and nonresidential development must fulfill the requirements of the well interference test as described in § 176-13, where applicable.
C. 
Major subdivisions. For all major subdivisions in all zones, a hydrogeological report shall be submitted prior to granting approval as to the suitability for subdivision by the administrative authority. This report shall include the information and data specified in § 176-7F below.
D. 
Major and minor subdivisions — certified wells.
(1) 
Certified wells shall be required for each lot of any subdivision in the Sourland Mountain District before approval as to the suitability of such lot can be granted by the administrative authority. For each of these wells, all wells on the other lots of the proposed subdivision must be available as observation wells. Preexisting producing wells located within the required distance from any test well as described in Table 13A[1] may be used as observation wells at the option of their owners.
[1]
Editor's Note: Table 13A is included in § 176-13A.
(2) 
For major subdivisions in all other zones, certified wells shall be required prior to the issuance of construction permits on each lot in that subdivision.
E. 
Nonresidential development.
(1) 
Newly installed or altered nonresidential wells require the installation of a totalizing water meter. Readings shall be reported monthly, or less frequently at the discretion of the Board. Frequency of reporting shall be based on septic system design restrictions or evidence of current or potential interference with neighboring wells.
(2) 
For nonresidential development proposals with a total projected water use for the project of 2,000 gallons per day or more in the Sourland Mountain District, or 4,000 gallons per day or more elsewhere in East Amwell, a preliminary hydrogeological analysis shall be required and shall include the information and data specified in § 176-7F below prior to granting of approval as to the suitability of the proposal by the administrative authority. Such analysis shall be performed by a qualified professional with experience in the field of hydrogeology and as a minimum shall include pump tests and well interference tests designed to show whether the water supply will be adequate for the intended use. Advance approval of all test protocols by the administrative authority shall be required.
(3) 
For nonresidential development proposals with a total projected water use for the project of less than 2,000 gallons per day in the Sourland Mountain District, or less than 4,000 gallons per day elsewhere in East Amwell, a simplified testing procedure consisting of a constant rate and recovery test shall be conducted as specified in § 176-12 below.
Table 7-E1
Livestock Category
Water Use Estimate (GPD) Per Unit
Adult cattle
11.0
Young cattle
6.0
Swine
5.2
Horses
10.1
Adult sheep and goats
2.5
Young sheep and goats
1.5
Chickens
0.05
Turkeys
0.15
NOTES:
1
Extrapolated from: Table from US Geological Survey, Water Resources Investigations Report 92-4145, prepared in cooperation with NJ Department of Agriculture.
(4) 
Demand for industrial and commercial use shall be based on N.J.A.C. 7:10-12.6. Agricultural demand shall be certified in writing by the landowner or applicant and shall include the total number of acres owned or operated, the acreage planted in each crop and the number of acres of each crop under irrigation. The letter shall also include a description of the irrigation or water use practices and irrigation equipment used and a description of the method used to measure the amounts of water diverted. Animal demands are obtained following Table 7-E above. If demand exceeds 100,000 gallons per day, a New Jersey water allocation permit must be obtained from the New Jersey Department of Environmental Protection.
F. 
Preliminary hydrologeological report.
(1) 
The preliminary hydrogeological report for the proposed major subdivisions specified in § 176-7C and nonresidential developments specified in § 176-7E above shall be prepared by a qualified professional with experience in the field of hydrogeology. The qualifications of the persons and firm who will be performing the test shall be submitted for review to the administrative authority. The hydrogeologic report shall include specifics as follows:
(a) 
A discussion of the hydrogeology of the site and its environs, including the review of available information in published maps and reports depicting East Amwell Township and surrounding municipalities and New Jersey Geological Survey (NJGS) Special Report No. 24 on Hunterdon County. This review shall also include the attitude of formation strike and dip and a fracture trace analysis using aerial photographs showing the location and orientation of fractures beneath the site.
(b) 
An aquifer test plan shall be submitted, including the location and technical specifications for the proposed test well and wells to be monitored for interference in accordance with § 176-7E(2). Prior to conducting an aquifer test, the applicant shall submit the design of such aquifer test, including the location of well(s) to be monitored for interference on adjacent lots. Such a review may include submission of such design to a qualified hydrogeologist representing the administrative authority for review and recommendations. The administrative authority may consider the comments and recommendations of this hydrogeologist prior to approving the aquifer test plan.
(c) 
The location of all disposal areas, active, abandoned and proposed, and the location of all soil tests for potential subsurface disposal areas within 250 feet of the proposed wells.
(d) 
A review of all well drilling results from the records of the Hunterdon County Health Department from lots located within 1,000 feet of the proposed development.
(e) 
A summary projection of the hydrological impact (e.g., the projected long-term trend of the water levels in the available aquifers or other sources of potable water) that may be caused by the proposed subdivision or nonresidential development and an outline of all measures that may reasonably be employed to minimize adverse impacts. This hydrological analysis shall at a minimum address the impacts of any existing and proposed wastewater disposal systems onto water supplies; impacts of any existing and proposed stormwater management practices onto any existing and proposed water supply and wastewater disposal systems; impacts of proposed water supplies and wastewater disposal systems onto stream baseflow and wetlands; and impacts regarding pollution of surface and groundwaters. The analysis shall also include an outline of all measures that may reasonably be employ to minimize any identified adverse impacts.
(2) 
As a basis for the required study, an adequate number of test wells shall be provided. The proposed location of these wells must be indicated on a plot plan and, along with the aquifer test plan, shall be provided to the administrative authority prior to installation of the wells. The fracture trace analysis should be used to identify all observation wells, which should be located along the primary geologic features. The first observation well, when required, shall be located along strike of the primary geologic fracture/structures identified on or near the property. Table 7-F below is a guide to the number of test well(s) required:
Table 7-F
Residential Subdivisions
Number of Proposed Lots
Number of Test Wells
Number of Observation Wells
3 to 10
1
2
11 to 25
2
4
26 to 49
3
6
50 and over
At the administrative authority's discretion, but not more test wells than 20% of the number of proposed lots
At the administrative authority's discretion, but not more test wells than 20% of the number of proposed lots
Public community systems
At the administrative authority's discretion, in consultation with the New Jersey Department of Environmental Protection
At the administrative authority's discretion, in consultation with the New Jersey Department of Environmental Protection
Nonresidential Developments
Average demand
(gallons per day)
Mountain
Valley
1,999 or less
1
0
2,000 to 9,999
2
1
10,000 to 50,000
3
2
50,000 to 100,000
51
41
100,000 or more
Obtain NJDEP water allocation permit
Obtain NJDEP water allocation permit
NOTES:
1
Includes shallow piezometer to assess impact of vertical leakage on shallow groundwater, on subsurface disposal units or on surface waters bodies such as wetlands.
(3) 
Both test wells and observation wells may be installed in locations which can be utilized for future domestic groundwater supplies. The minimum number of observation wells does not include existing wells. Observation wells and all existing wells within a distance from the test well as specified in Table 13-A shall be monitored, but monitoring of existing wells may be performed only if their owners have so requested, following the outline in § 176-13A.
(4) 
The qualified professional shall provide an outline of the proposed field work to the administrative authority for review before the field work commences.

§ 176-8 Related technical requirements.

All wells constructed within East Amwell Township shall conform to the standards for the construction of nonpublic and noncommunity wells as promulgated by the New Jersey Department of Environmental Protection, N.J.A.C. 7:10-1 et seq., with the following amendments:
A. 
No new well shall be located at a distance less than that shown in the following table from any existing or proposed well. Three-part pump tests are mandatory for all wells for which the distance requirements of Table 8-A have been waived.
Table 8-A
Lot Size
Minimum Spacing of New
Wells from Other Wells1,2
Less than 1.5 acres
100 feet3
1.5 to 3 acres
150 feet
More than 3 acres
250 feet
NOTES:
1 The minimum spacing requirements for a replacement well for an existing use may be waived by the administrative authority if there is no expansion or change of use.
2 The spacing requirement may be waived for multiple wells on single lots that serve one individual residence at the discretion of the administrative authority upon adequate justification.
3 The spacing requirement for very small lots may be reduced to not less than 50 feet with a minimum of 50 feet of casing to accommodate spacing from existing wells.
B. 
Blasting for development of any well is prohibited.
C. 
Hydrofracturing for development of any well within a distance of 250 feet from an existing well is prohibited.
D. 
Any new well shall be provided with a pitless adapter, installed below the frost level.
E. 
Placement of the pump shall not be deeper than 10 feet above the bottom of the well, but not less than five feet below the depth of the lowest water level measured during a successful peak demand test.
F. 
Six-inch well casing must weigh a minimum of 19 pounds per foot (0.280 inches wall thickness.)
G. 
Any wellhead that is buried below grade and dug up for repair to the well or the pump must have the well casing extended above grade and a pitless adapter installed, if practical. Well casing must extend a minimum of 12 inches above finished grade.
H. 
Any well used during test proceedings must be disinfected at the end of the pump testing in accordance with guidelines from the Hunterdon County Health Department with the use of liquid or granular chlorine (block chlorine is not permitted.)

§ 176-9 Test requirements for drilling discharge test.

[Amended 12-16-2014 by Ord. No. 14-02BH]
A. 
General requirements.
(1) 
The capability of a residential well to meet the total water requirements of its user can be estimated by a drilling discharge test, a procedure commonly known as "blowing the well." This test shall be conducted under the direction of a qualified hydrogeologist, a professional engineer or a well driller, licensed under the laws of the State of New Jersey. The administrative authority reserves the right to witness all drilling discharge tests; the witness will certify the test results to the administrative authority on the appropriate East Amwell Township well testing report forms. A minimum of two working days' advance notice shall be provided to the administrative authority. The well driller may be authorized by the administrative authority to certify the results. The drilling discharge test cannot be used to certify new wells for:
(a) 
Nonresidential uses greater than 500 gallons per day.
(b) 
New wells located closer to other wells than specified in Table 8-A.
(c) 
New wells located in the Sourland Mountain District of East Amwell Township.
(2) 
Three-part pump tests will be required for these new wells.
B. 
Test protocol.
(1) 
The drilling discharge test may be performed at any time during the drilling operation after the well casing has been installed but preferably after a promising aquifer has been penetrated and the desired well depth has been reached. To initiate the test, the drill rotation must be stopped and the flow of any feed water terminated. With the drill bit remaining at the bottom of the well bore, compressed air flow through the drilling pipe is maintained to discharge all the water from the well bore until the overflow has cleared up completely but for at least 20 minutes or to the maximum that conditions allow.
(2) 
In the meantime, an annular catch basin is formed by mounding the drilling chips around the protruding well casing to collect the entire discharge. A short length of four-inch diameter pipe is imbedded into the wall of this catch basin to form a spout. The well discharge rate is then determined by timing the filling of a container of known volume (typically one gallon for lower well yields and five gallons for high well yields) under the spout with a suitable timer (e.g., a stopwatch). This timing is repeated in intervals of at least two minutes until three consecutive measurements do not differ by more than 10% or by not more than one second, whichever is greater. This flow test may also be performed by other methods such as a calibrated v-notch weir with the prior approval of the administrative authority or the test witness.
(3) 
It is important to conduct the entire test sequence without interruptions.
(4) 
The static water level of all wells with a test yield of 10 gallons per minute or more as estimated by the drilling discharge test shall be measured after completion of the drilling operation and the removal of the drilling rig. To allow sufficient time for well recovery, the static water level must be measured no sooner than one hour after removal of water from the well has stopped.
C. 
Interpretation of the results.
(1) 
If the drilling discharge test results indicate a well yield of less than 10 gallons per minute (GPM), the well will have to be tested by the three-part pump test as described in § 176-10 before it can be certified for use.
(2) 
If the drilling discharge test results indicate a well yield of 10 GPM or more, a three-part pump test is not required for houses of five bedrooms or fewer, with no ancillary uses that exceed 100 gallons per day.
(3) 
All pump tests shall be conducted under the supervision of a qualified hydrogeologist, a professional engineer, or a well driller or a pump installer licensed under the laws of the State of New Jersey, who shall certify the results to the Administrative Authority if the tests were not witnessed by an agent of the Administrative Authority. All test results shall be recorded on East Amwell Township Well Testing Report forms to be issued by the Administrative Authority.

§ 176-10 Test requirements for three-part pump test.

A. 
General requirements.
(1) 
The capability of a residential well to meet the peak demand and the total daily requirements of its user shall be evaluated through a three-part pump test. The well must pass the peak demand test as required for the size of the residence to be supported by the well as described in § 176-10C. The result of the constant rate pump test shall determine, according to § 176-10D, the maximum size of the proposed residence to be supported by the well. The well recovery test provides additional data about the suitability of the well for extended use; recovery test results are for information only and are recorded following § 176-10E.
(2) 
All pump tests shall be conducted under the supervision of a qualified hydrogeologist, a professional engineer or a well driller or a pump installer licensed under the laws of the State of New Jersey, who shall certify the results to the administrative authority if the tests were not witnessed by an agent of the administrative authority. All test results shall be recorded on East Amwell Township well testing report forms to be issued by the administrative authority.
(3) 
The administrative authority reserves the right to witness all three-part pump tests. A minimum of four working days' advance notice shall be provided to the administrative authority, which reserves the right to allot testing dates in case of scheduling problems.
B. 
Technical requirements.
(1) 
The three-part pump test must be performed in one continuous operation as specified in § 176-10C, D, and E. The well must be at its static level at the beginning of the test; i.e., the well has to be undisturbed for at least 12 hours before testing. If the test sequence has to be interrupted for technical reasons, the well must be pumped to the drawdown observed just prior to the interruption before the test sequence can be resumed.
(2) 
A submersible pump shall be provided that is capable of pumping at least at the peak demand rate and can be lowered to a sufficient depth in the well.
(3) 
Flow rates at the discharge line must be measured with a water flow meter. A valve must also be on the discharge line in order to permit adjustment of the flow rate. A means of verifying meter calibration during the test (e.g., a five-gallon pail and a suitable timer) must be available to the witness. If a witness is not available, a calibration must be performed as soon as practical after the start of the test, and the results shall be made available to the administrative authority.
(4) 
Water levels must be measured to the nearest inch or 10th of a foot from a fixed point; e.g., from the top of the casing. The equipment used to measure the water levels must have an audible signal and/or a light to register when water is encountered. Installation of a dip tube is recommended to protect the probe from cascading water.
(5) 
Failure to have the required equipment at the test well may result in cancellation of the test.
C. 
Peak demand test.
(1) 
General requirements.
(a) 
The peak demand test is a standard drawdown pump test used to determine whether the well can supply the water needed by the household during times of peak water demand.
(b) 
The results of the peak demand test must show that well storage plus well recharge during peak demand time at least equals the peak load required for the residence proposed to be supported by the well.
(c) 
If the results of the peak demand test are unsatisfactory, the well may be altered or used in conjunction with additional wells; or the design of the proposed residence must be so modified as to lower the peak load requirements sufficiently to accommodate the performance of the well; otherwise, the well shall be abandoned and sealed in accordance with the requirements of N.J.A.C. 7:20-3.1 et seq.
(2) 
Test protocol.
(a) 
To perform the peak demand test, the well is pumped at least at the peak demand rate until the peak load has been delivered. The peak demand rate equals three GPM per bathroom with a maximum of nine GPM, and the peak load equals 100 gallons per bedroom.
(b) 
The drawdown is monitored during the test. To pass the peak demand test, the well must not be drawn down anytime during the test to a level less than 15 feet above the bottom of the well.
(c) 
An estimation of the well recharge rate (well yield or aquifer contribution) can be performed by a simple calculation on the East Amwell Township Peak Demand Test Form, based on the data collected during the peak demand test. This estimate may be used for guidance in the constant rate pump test, but it shall not be used for the official determination of the well recharge rate.
D. 
Constant rate pump test.
(1) 
General requirements. The constant rate pump test is used to measure the well yield and to determine whether the recharge from the aquifer is sufficient to replenish the water volume removed from the well during peak demand periods. To allow for long-term fluctuations of water availability from the aquifer, caused by variations of precipitation, competition from other groundwater users or other factors, the minimum requirements of Table 10-D for constant rate pump test results shall apply to all residential construction.
Table 10-D
Aquifer Contribution (Well Recharge or Yield) from Constant Rate Test
Limits to Residence1 Supported by the Well
More than 3.0 GPM
Unrestricted bedrooms
2.0 to 3.0 GPM
Not more than 4 bedrooms
1.5 to 2.0 GPM
Not more than 3 bedrooms
1.0 to 1.5 GPM
Not more than 2 bedrooms
Less than 1.0 GPM
Well may be used for partial water requirements, but not permitted as sole support of residence
NOTES:
1 For multiresidence use, minimum water requirements of N.J.A.C. 7:10-12.7 govern, and each two-hundred-gallon per-day requirements or fraction thereof shall be considered equivalent to one bedroom for the purpose of the constant rate pump test.
(2) 
Test protocol.
(a) 
The constant rate test is undertaken immediately following the peak demand test regardless of whether or not the well passed the peak demand test. The pump discharge rate should be as close as possible to the peak demand test pumping rate, but the main objective is to achieve a stable water level while pumping at a constant rate. The water level can be considered stable when the drawdown under a constant pumping rate does not change by more than three feet or 3% or at the discretion of the witness between consecutive readings. The drawdown is determined at twenty-minute intervals.
(b) 
The constant rate test is normally run for a full four hours with at least the last hour under stable water level conditions.
(c) 
To simplify the test and reduce the time requirements, the following modification can be applied, at the discretion of the witness, for high yield test wells: If, after the first two hours of the constant rate pump test, the corrected yield is greater than 10.0 GPM and the corrected yield did not decrease by more than 0.5 GPM during the second hour, then the constant rate pump test may be stopped. The determination of the second hour corrected yield is performed by averaging the second hour's readings and comparing them to the average of the first hour's readings.
Example: The corrected yield for a test well is 10.8 GPM at the end of the second hour of the constant rate pump test. The corrected yield measurements for the last hour are: 11.5, 10.8, 10.9 and 10.8. The average value of these readings is 11.0.
The readings for the first hour of the test were: 11.9, 11.7, 11.8. The average of these readings is 11.8. The average decrease for the second hour is 0.8 GPM, which is greater than 0.5 GPM. Therefore, the test must be continued for the full four hours.
(d) 
The constant rate test results shall be based on the average of the last four readings.
(e) 
Water quality analyses shall be conducted in accordance with the Private Well Testing Act and Private Well Testing Rules (N.J.A.C. 7:9E). Additional water quality tests may be required by the administrative authority based on past agricultural history of the site, or due to suspected or known contaminated sites in the area of the test well.
E. 
Well recovery test.
(1) 
The well recovery test has no minimum requirements; it is for information only. However, failure of a well to recover 90% of the drawdown within a twenty-four-hour period raises doubts about the reliability of the well as a long-term water supply for residential use.
(2) 
Record the final water level from the constant rate pump test. Turn off the pump and record that time as the zero time for the start of the well recovery test. Continue to record water level measurements as suggested in Table 10-E.
Table 10-E
Time Period of the
Well Recovery Test
Suggested Reading Intervals
After pump removed
Every 5 minutes
For next 20 minutes
Every 5 minutes
Up to 1 hour
Every 10 minutes
After first hour
Every hour until 90% recovery, or take a final reading no later than 24 hours after pump shutdown

§ 176-11 Subdivision site plan requirements for three-part aquifer test.

[Amended 12-16-2014 by Ord. No. 14-02BH; 12-15-2015 by Ord. No. 15-01BH]
A. 
General requirements.
(1) 
The capacity of a proposed residential subdivision to meet water supply needs shall be evaluated through a three-part aquifer test. The aquifer test shall be conducted with a background phase, a constant rate pumping phase and a recovery phase. The pumping rate and total gallons pumped during the pumping phase should demonstrate that the required water is available without adverse impact on adjacent properties, the aquifer and related surface water features. If multiple production wells are required to meet development demands, the aquifer test plan must provide details for either conducting individual well tests for each proposed production well or on conducting the test using multiple production wells.
(2) 
The test shall be conducted in accordance with § 176-7C, D and E above. The minimum pumping rate for the testing shall be based on the calculated peak load times a factor of two to represent a daily maximum demand.
(3) 
The administrative authority reserves the right to witness all three-part aquifer tests. A minimum of five working days' advance notice shall be provided to the administrative authority, which reserves the right to allot testing dates in case of scheduling problems.
B. 
Technical requirements.
(1) 
The three-part aquifer test must be performed in one continuous operation as specified in § 176-11C and D. The design and operation of the aquifer test shall conform to the applicable sections of "Guidelines for Preparing Hydrogeologic Reports for Water Allocation Permit Application with an Appendix on Aquifer Test Analysis Procedures," NJGS GSR 29 (1992 or the most recent edition or successor document). The general outline of the aquifer test procedure includes a background period of water level data collection prior to the start of the constant rate test, a constant rate pumping portion of the test and a final phase of monitoring recovery from the constant rate pumping portion of the test.
(2) 
For proposed subdivisions within the Sourland Mountain District testing is required on all wells of the subdivision as per § 176-7D. The required number of three-part aquifer tests as per § 176-11 shall be determined by Table 7-E. The remaining wells are to be tested in accordance with § 176-10, the three-part pump test. The aquifer test plan will provide rational for selection of the well(s) for subdivision aquifer testing as per § 176-11.
(3) 
The background phase of testing includes 24 hours of monitoring static water levels in the wells immediately prior to the start of the constant rate portion of the test. A minimum of twenty-minute water level measurements is required from each test and monitoring well during the twenty-four-hour period. It is recommended that a continuous water level monitor be used to read the readings. The purpose of the background period of the test is to collect data necessary to demonstrate that any antecedent influence can be removed from the constant rate test data. Antecedent effects can include rainfall events, barometric pressure changes, pumping influences from other users in the aquifer and long-term seasonal water level trends.
(4) 
The water levels in the aquifer must be stable prior to the start of the constant rate aquifer test as determined by a final round of pretest background water level measurements. The pump and discharge pipe shall be equipped with a calibrated flow meter for all flows under 40 GPM and shall be verified with timed volumetric measurements (for example, the time required to fill a five-gallon pail). The discharge must be directed away from the site without infiltrating to the aquifer and affecting water levels in the monitoring wells. Any permits required by the NJDEP for the discharge of water must be obtained prior to starting the test.
(5) 
The flow rate shall be immediately adjusted at the start of the test to the constant rate developed in the approved aquifer test plan. The flow rate may not vary for more than 10% throughout the duration of the test or the test may have to be repeated. Short duration pump failures are not allowed, and the test will have to be repeated.
(6) 
Water level measurements during the pumping phase of the test will conform to the schedule in NJGS GSR 29 or shall be conducted in conformance with the approved aquifer test plan. The same requirement holds for water level measurements during the recovery portion of the test.
(7) 
Water quality analyses shall be conducted in accordance with the Private Well Testing Act and Private Well Testing Rules (N.J.A.C. 7:9E). Additional water quality tests may be required by the administrative authority based on past agricultural history of the site, or due to suspected or known contaminated sites in the area of the proposed subdivision.
(8) 
The water levels in the test and observation wells shall recover to static levels after conclusion of the constant rate test within a time period equal to the duration of pumping. If the wells do not fully recover, recovery measurements will be extended to 24 hours from the start of recovery. If the wells are not fully recovered within 24 hours after start of recovery, the well will have failed the aquifer test unless adequate data can be provided to ensure that the aquifer is of sufficient extent to prevent the mining of groundwater from fractures zones of limited lateral extent.
C. 
Final hydrogeologic report.
(1) 
A final hydrogeologic report shall be provided with each subdivision site plan application, including all data from the three-part aquifer test. Data shall be provided on a floppy disk or CD in Microsoft Word and Excel compatible format.
(2) 
The final hydrogeologic report shall provide calculations of important aquifer characteristics such as transmissivity and storage coefficient as detailed in NJDEP GSR 29. The radius of influence for the test as determined from observation wells shall be provided. The impact on adjacent landowners shall be described. The overall assessment of the aquifer test compared to data developed in the preliminary hydrogeologic report shall be detailed, specifically variations in expected response of the aquifer.
(3) 
The final hydrogeologic report shall include a detailed evaluation of the water supply demand for the average and peak day of the subdivision. Evaluation of the long-term use of the well on the ability of the aquifer to sustain the water demand as well as an analysis of the overall ability of the aquifer to meet existing demands of adjoining properties shall be detailed. Impact on the overall water budget from the subdivision including impacts on surface water bodies, shall be provided.
(4) 
The report shall include an analysis of the potential impacts from subsurface sewerage disposal systems on the groundwater quality. This analysis shall consist of a site plan depicting the well, septic leach field, geologic features observed from the fracture trace analysis and the radius of influence from the well. The report will also detail the results of the water quality analysis.
D. 
Pass/fail criteria for nonresidential tests.
(1) 
The test and observation well(s) must meet the recovery requirement stated in § 176-11B(8).
(2) 
Any three-part aquifer test will be deemed to fail if more than two feet of drawdown is projected at any existing property boundary at the rate and duration equal to the average daily demand over a twenty-four-hour period for the proposed development unless the applicants' hydrogeologist provides adequate justification to the administrative authority that water use at average daily demand will not adversely impact water resources and existing wells on affected properties.
(3) 
The proposed development will be deemed to fail if more than five feet of drawdown is observed in wells on adjoining properties during testing or is projected at any existing property boundary at the rate and duration equal to the peak daily demand over a twenty-four-hour period. The applicant shall either decrease the average daily demand or the applicant's hydrogeologist must provide adequate justification to the administrative authority that water use at average and peak daily demand will not adversely impact water resources and existing wells on affected properties.

§ 176-12 Nonresidential requirements for three-part aquifer test.

[Amended 12-16-2014 by Ord. No. 14-02BH; 12-15-2015 by Ord. No. 15-01BH]
A. 
General Requirements.
(1) 
The capacity of a nonresidential well(s) to meet the average and peak demand requirements of its user shall be evaluated through a three-part aquifer test. The aquifer test shall be conducted with a background phase, a constant rate pumping phase and a recovery phase. The pumping rate and total gallons pumped during the pumping phase should demonstrate that the required water is available without adverse impact on adjacent properties, the aquifer and related surface water features. If multiple production wells are required to meet development demands, the aquifer test plan must provide details for either conducting individual well tests for each proposed production well or on conducting the test using multiple production wells.
(2) 
The test shall be conducted in accordance with § 176-7C, D and E above. The minimum pumping rate for the testing shall be based on the calculated peak load times a factor of two to represent a daily maximum demand.
(3) 
All pump tests shall be conducted under the supervision of a qualified hydrogeologist, a professional engineer, or a well driller or a pump installer licensed under the laws of the State of New Jersey, who shall certify the results to the Administrative Authority if the tests were not witnessed by an agent of the Administrative Authority. All test results shall be recorded on East Amwell Township Well Testing Report forms to be issued by the Administrative Authority.
(4) 
The Administrative Authority reserves the right to witness all three-part aquifer tests. A minimum of two working days' advance notice shall be provided to the Administrative Authority, which reserves the right to allot testing dates in case of scheduling problems.
B. 
Technical requirements: hydrogeologic report required.
(1) 
The three-part aquifer test must be performed in one continuous operation as specified in § 176-12C, D and E. The design and operation of the aquifer test shall conform to the applicable sections of "Guidelines for Preparing Hydrogeologic Reports for Water Allocation Permit Application with an Appendix on Aquifer Test Analysis Procedures," NJGS GSR 29 (1992 or the most recent edition or successor document). The general outline of the aquifer test procedure includes a background period of water level data collection prior to the start of the constant rate test, a constant rate pumping portion of the test and a final phase of monitoring recovery from the constant rate pumping portion of the test.
(2) 
The background phase of testing includes three days of monitoring static water levels in the wells immediately prior to the start of the constant rate portion of the test. A minimum of hourly water level measurements is required from each test and monitoring well during the three-day period. It is recommended that a continuous water level monitor be used to read the readings. The purpose of the background period of the test is to collect data necessary to demonstrate that any antecedent influence can be removed from the constant rate test data. Antecedent effects can include rainfall events, barometric pressure changes, pumping influences from other users in the aquifer and long-term seasonal water level trends.
(3) 
The water levels in the aquifer must be stable prior to the start of the constant rate aquifer test as determined by a final round of pretest background water level measurements. The pump and discharge pipe shall be equipped with a calibrated flow meter for all flows under 40 GPM and shall be verified with timed volumetric measurements (for example, the time required to fill a five gallon pail). The discharge must be directed away from the site without infiltrating to the aquifer and affecting water levels in the monitoring wells. Any permits required by the NJDEP for the discharge of water must be obtained prior to starting the test.
(4) 
The flow rate shall be immediately adjusted at the start of the test to the constant rate developed in the approved aquifer test plan. The flow rate may not vary for more than 10% throughout the duration of the test or the test may have to be repeated. Short duration pump failures are not allowed, and the test will have to be repeated.
(5) 
Water level measurements during the pumping phase of the test will conform to the schedule in NJGS GSR 29 or shall be conducted in conformance with the approved aquifer test plan. The same requirement holds for water level measurements during the recovery portion of the test.
(6) 
Water quality analyses shall be conducted in accordance with the Private Well Testing Act and Private Well Testing Rules (N.J.A.C. 7:9E). Additional water quality tests may be required by the administrative authority based on past agricultural history of the site, or due to suspected or known contaminated sites in the area of the proposed subdivision.
(7) 
The water levels in the test and observation wells shall recover to static levels within 24 hours after the conclusion of the constant rate. If the test and observation wells are not fully recovered within 24 hours after start of recovery, the well will have failed the aquifer test unless adequate data can be provided to ensure that the aquifer is of sufficient extent to prevent the mining of groundwater from fractures zones of limited lateral extent.
C. 
Technical requirements: hydrogeologic report not required.
(1) 
For nonresidential development proposals with a total projected water use of less than 2,000 gallons per day in the Sourland Mountain District or less than 4,000 gallons per day elsewhere in East Amwell Township, a simplified constant rate test will be conducted without the requirements for the background test, the aquifer test plan and hydrogeologic report. The applicant shall provide a proposed daily water use for the project in gallons per day, which shall be the basis for the test described below. To be certified for the proposed water use, the well must be capable of yielding at minimum that water volume within the two hour period of the test. The actual results of the test shall determine the maximum water volume the well is capable of producing and the well will be certified for this amount. Applicant daily water usage from this well shall not exceed the certified volume.
(2) 
To calculate the constant rate test pump rate, the proposed water use (total gallons per day) is divided by 120 to provide the minimum pump rate, in gallons per minute (GPM), required to discharge the requested water volume within the two-hour test period. The submersible pump used for the test must be capable of pumping at least that rate. For example, a proposed water use of 2,000 gallons per day requires a pump capable of delivering at least 16.7 GPM.
(3) 
To conduct the constant rate test, install a submersible pump as deep as possible in the well, recording its actual depth. Record the initial water level in the well and the water meter reading; start the pump and record the test start time. During the test, verify the accuracy of the water meter readings by measuring with a stop watch the time required to fill a five gallon container. (five gal/number of seconds x 60 sec/min=GPM.) Run the pump at its maximum flow rate and record the well water level at least every 10 minutes until the water level stabilizes and every 15 minutes thereafter. If the water level drops to within 15 feet of the pump, reduce the pump output until the well water level stabilizes. Continue pumping the well for a total of two hours maintaining a stable water level during the second hour (i.e., the water level should not change more than three feet or 3% of the drawdown, whichever is greater, between fifteen-minute readings. Deviation from this standard to allow for technical anomalies shall be allowed at the discretion of the witness.) The final pump rate, determined from averaging the last hour's flow meter readings, shall be recorded. The well shall be certified for daily use at the volume of water it actually produced during the test. The applicant shall not exceed the tested well's certified daily volume as determined by this test.
D. 
Final hydrogeologic report.
(1) 
A final hydrogeologic report shall be provided with each nonresidential site plan application, including all data from the three-part aquifer test. Data shall be provided on a floppy disk or CD in Microsoft Word and Excel compatible format.
(2) 
The final hydrogeologic report shall provide calculations of important aquifer characteristics such as transmissivity and storage coefficient as detailed in NJDEP GSR 29. The radius of influence for the test as determined from observation wells shall be provided. The impact on adjacent landowners shall be described. The overall assessment of the aquifer test compared to data developed in the preliminary hydrogeologic report shall be detailed, specifically variations in expected response of the aquifer.
(3) 
The final hydrogeologic report shall include a detailed evaluation of the water supply demand for the average and peak day of the facility. Evaluation of the long-term use of the well on the ability of the aquifer to sustain the water demand as well as an analysis of the overall ability of the aquifer to meet existing demands of adjoining properties shall be detailed. Impact on the overall water budget from the operation of the facility, including impacts on surface water bodies, shall be provided.
(4) 
The report shall include an analysis of the potential impacts from subsurface sewerage disposal systems on the groundwater quality. This analysis shall consist of a site plan depicting the well, septic leach field, geologic features observed from the fracture trace analysis and the radius of influence from the well.
E. 
Pass/fail criteria for nonresidential tests requiring hydrogeologic report.
(1) 
The observation well(s) must meet the recovery requirement stated in § 176-12B(7), if applicable.
(2) 
Any individual production well will be deemed to fail if more than two feet of drawdown is projected at any existing property boundary at the rate and duration equal to the average daily demand over a twenty-four-hour period for the proposed development, unless the applicants' hydrogeologist provides adequate justification to the administrative authority that water use at average daily demand will not adversely impact water resources and existing wells on affected properties.
(3) 
The proposed development will be deemed to fail if more than five feet of drawdown is observed in wells on adjoining properties during testing or is projected at any existing property boundary at the rate and duration equal to the peak daily demand over a twenty-four-hour period. The applicant shall either decrease the average daily demand or the applicant's hydrogeologist must provide adequate justification to the administrative authority that water use at average and peak daily demand will not adversely impact water resources and existing wells on affected properties.

§ 176-13 Well interference tests.

A. 
New wells in proximity to existing producing wells.
(1) 
Whenever a new residential water well within East Amwell Township is to be subjected to the three-part pump test producing wells existing within the maximum distance specified in Table 13-A from the new well may be used as observation wells to determine well interference. If more than three wells qualify as observation wells, the administrative authority will give preference to the nearest wells and to those located symmetrically around the test well or along known geologic structures.
(2) 
Whenever a proposed subdivision within East Amwell Township is to be subjected to the three-part aquifer test, the number of existing producing wells that may be used as observation wells for interference testing are specified in Table 13-B. The administrative authority will give preference to the nearest wells and to those located along known geologic structures as determined by the fracture trace analysis.
(3) 
Whenever a new nonresidential water well within East Amwell Township is to be subjected to the three-part aquifer test, the number of existing producing wells that may be used as observation wells for interference testing are specified in Tables 13-B and 13-C. The administrative authority will give preference to the nearest wells and to those located along known geologic structures as determined by the fracture trace analysis.
TABLE 13-A
Size of Lot with New Well
(acres)
Maximum Distance of Observation Wells from New Well1
(feet)
Less than 3.0
300
3.0 to 10
500
More than 10
1,000
NOTES:
1 There is no maximum distance when testing wells of a multiple well system intended to serve a single user; all those wells shall serve as observation wells in turn.
TABLE 13-B
Number of
Proposed Lots
Property owner notification radius
(feet)
Number of Private Observation Wells Required
(if available)1
3 — 10
1000
3
11 — 25
2000
4
26 — 49
2500
5
50 and over
As determined in consultation with NJDEP
As determined in consultation with NJDEP
1 The number of wells to be used as observation wells for interference testing may be increased or decreased by the administrative authority based on geologic features and well location.
TABLE 13-C
Average Demand
(gallons per day)
Property owner notification radius
(feet)
Number of Private Observation Wells Required
(if available)1
1,999 or less
500
3
2,000 to 9,999
1,000
4
10,000 to 50,000
2,000
5
50,000 to 100,000
3,000
6
Over 100,000
As determined with NJDEP Bureau of Water allocation
As determined with NJDEP Bureau of Water allocation
1 The number of wells to be used as observation wells for interference testing may be increased or decreased by the administrative authority based on geologic features and well location.
(4) 
The applicant for a well certification shall notify owners of real property within the maximum distance found in Table 13-A, Table 13-B and Table 13-C from the proposed new residential and nonresidential wells, respectively, of the impending well test by certified mail on the forms available from the administrative authority. A certified list of property owners shall be obtained from the East Amwell Tax Assessor. Any owner of a producing well within the maximum distance from the proposed new well so notified shall have one week from the date of the receipt of the certified letter to request monitoring of such producing well as an observation well at the applicant's expense. Locating and accessing the well shall be at the observation well owner's risk and expense. The owner of the observation well shall sign a release holding the well tester harmless for any inconvenience resulting from the monitoring of the well.
(5) 
When an existing producing well is used as an observation well, the well shall be sterilized by the well tester after the test in accordance with guidelines from the Hunterdon County Health Department with the use of liquid or granular chlorine (block chlorine is not permitted.)
(6) 
To qualify as an observation well, at least three hours before the beginning of the test sequence, the owner shall not use the well water or shall agree to have the pump of the well electronically disconnected to permit stabilization of the static water level. Appropriate measures must be taken to assure the agent of the administrative authority of the disabling of the pumps in all observation wells throughout the pump tests.
(7) 
The water levels in the observation wells for residential well tests shall be monitored before the peak demand test until the completion of the constant rate pump test of the new well at intervals of preferably not more than one hour. The water levels in the observation wells for nonresidential well tests shall be monitored beginning at the conclusion of the background well test, for a minimum of two times at thirty-minute intervals prior to the start of the constant rate test. The water level in the observation well shall not change more than 0.10 feet between consecutive measurements or the start of the constant rate test shall be delayed.
(8) 
If the drawdown in any properly monitored observation well during the pump tests of the new residential well exceeds the greater of five feet or of 10% of the maximum drawdown of the new well during the pump tests, significant well interference is likely, and the new well cannot be certified for use as such.
(9) 
In such instances, the administrative authority may require the applicant to show why the documented well interference is not significant. If a significant adverse impact of interference cannot be remedied, the administrative authority may deny certification of the new well.
B. 
Multiple new wells.
(1) 
Interference testing as described in § 176-12A(1) above shall be performed between new wells of a proposed subdivision of two or more lots. Wells located within the maximum distance of Table 12-A from a test well shall be tested in accordance with § 176-12A(1).
(2) 
If the drawdown in any observation well during these residential pump tests exceeds the greater of five feet or 10% of the maximum drawdown of the test well during the pump tests, the well spacing is considered inadequate, and either the test well or the observation well showing excessive drawdown must not be certified unless the applicant can show that the documented interference is not significant.
C. 
Multiple well water supply systems. If the use of more than one well for provision of the water supply for a residence is proposed, (e.g., for reasons of insufficient yield of individual wells according to § 176-10A of this chapter), interference testing between all wells proposed for the system is mandatory.

§ 176-14 Fees and charges.

A. 
The application fee for an East Amwell Township well drilling shall be assessed as per the fee schedule determined by the Hunterdon County Department of Health, plus the fee of $20 as determined by the East Amwell Township Board of Health.
B. 
There will be a witness fee for the observation of a three-part pump test. If a successful drilling discharge test obviates the three-part test, a portion of the witness fee will be returned.
C. 
In cases where the administrative authority requires a consulting hydrogeologist to develop a test protocol, the fee for professional services will be paid by the applicant.

§ 176-15 Retest procedures.

A licensed well driller or a professional licensed engineer or pump installer must be present during retest, the entire procedure must be undertaken, even if only one section of the original test has failed. The witness fee as provided in Chapter 149, Fees, Article I, Witnessing Well Test and Field Work, must be paid for a retest, even though the Hunterdon County Department of Health does not charge a duplicate fee.

§ 176-16 Violations and penalties.

Any person or persons, firm or corporation violating any of the provisions of or any order promulgated under this chapter shall, upon conviction thereof, pay a penalty of not more than $500 nor less than $50 for each violation. Each day a particular violation continues may constitute a separate offense.

§ 176-17 Severability.

If any provision of this chapter or the application thereof to any person or circumstance is held invalid, such invalidity shall not affect other provisions or applications, and to this end, the provisions of the chapter are declared to be severable.