This Part 3 shall be known as and have the short title of 'Holland Township Stormwater Runoff Control Ordinance (1980)'

It is the intent of this Part 3 to establish requirements and standards which will control the flow rates, volumes and velocities of discharge of stormwater runoff and minimize the potential for soil erosion and sedimentation resulting from future development within the township.

The following words, as used in this Part 3, shall have the following meanings

APPLICANT - Any person applying for site plan approval, subdivision approval or a construction permit for development, all or part of which is in the township

DRAINAGEWAY - Any watercourse, trench, ditch, depression, etc, natural or artificial, which collects or disperses surface water from the land,

DETENTION BASIN - A floodwater control device which detains a portion of the total runoff

HYDROGRAPH - A graph showing for a given point in the drainage system the peak flows versus time during the design storm.

RECHARGE DEVICES - Devices such as dry wells, cisterns, etc, which collect stormwater and recharge this water to the ground via percolation through the soil

RETENTION BASIN - A floodwater control device which retains a certain portion of the runoff and detains an additional amount during subsequent storms

TOWNSHIP - The Township of Holland, in the County of Hunterdon, State of New Jersey

WATERSHED - That total land area which drains to a given point along a drainageway

A. Major subdivisions and site plans At the time of or prior to the granting of preliminary major subdivision or preliminary site plan approval by the Township Planning Board or Board of Adjustment, a plan of stormwater runoff control conforming to this Part 3 for all construction shown thereon must be submitted and approved. Such a plan must also be submitted and approved for individual lots created by major subdivisions if, in the opinion of the Township Engineer, such plan is required to ensure that future construction on the proposed lots is feasible without unavoidable problems created by stormwater runoff

B. Minor subdivisions and site plans. At the time of or prior to the granting of minor subdivision approval or minor site plan approval by the Township Planning Board or Board of Adjustment, a plan of stormwater runoff control as required hereunder for major subdivisions and site plans must be submitted and approved if, in the opinion of the Township Engineer, such plan is required to ensure that future construction on the involved lot or lots is feasible without unavoidable problems created by stormwater runoff

C.Individual lots. residential construction permits. Application to the Township Development Regulations Officer for residential construction permits may be required to include a plan of stormwater runoff control if, in the opinion of the Development Regulations Officer, upon consultation with the Township Engineer, such a plan is needed due to the steepness of slopes, location or conditions of existing drainageways or existing or potential drainage problems When such a plan is required, it shall be closely coordinated with any plan prepared for application for a driveway permit under any township ordinance requiring such permit, [Amended 7-1-80 by Ord No 80-17]

This Part 3 shall not apply to

A.Land disturbance resulting from agricultural uses

B.Land disturbance of less than five thousand (5,000) square feet resulting from improvements to existing lots with existing residences

C. Land disturbance resulting from the construction of singlefamily residences except as described in § 100-185 hereof.

The requirements of this Part 3 for a stormwater runoff control plan may be waived where, in the opinion of the Township Engineer, there will be little or no anticipated adverse effects due to changes in stormwater runoff patterns, flows and velocities resulting from the proposed development

A. The stormwater runoff control plan required hereunder shall be designed to meet the following criteria.

(1) Peak flow velocities and peak flow rates (in cubic feet per second) on adjoining properties, roads or streams shall be no greater during construction or after development than exists at the time of application for site plan or subdivision approval or construction permit, as the case may be, for storms ranging from six (6) months to one hundred-year recurrent intervals

(2) No substantial diversion of runoff from one (1) watershed to another shall be permitted, nor shall any substantial alterations to existing drainage patterns be allowed which would result in adverse effects on adjoining properties or roads

(3) Where possible and feasible, any existing stormwater control devices on the site shall be preserved

(4) Extensive and/or unnecessary grading shall be discouraged. Disturbance of existing ground cover of good hydrologic condition shall be minimized

(5) Upon completion of the project, there shall be no potential erosion problems nor any possibility of future sedimentation of downstream waterways.

B. The stormwater runoff control plan shall be prepared by a professional engineer licensed in the State of New Jersey and shall conform to the following standards:

(1) All soil erosion and sedimentation control devices shall conform to Standards and Specification for Soil Erosion and Sediment Control in New Jersey, as adopted by the Hunterdon County Soil Conservation District.

(2) Maximum flow velocities in any drainageway created on the site shall not exceed those specified as permissible velocities for the given ground cover in the above referenced soil conservation manual Maximum flow velocities shall not exceed four (4) feet per second where runoff leaves the site unless proof can be provided that the existing ground cover can support higher velocities

(3) Peak flows and velocities

(a) Peak flows and velocities shall be computed using either the Rational Method or the Soil Conservation Service Method The following frequency storms shall be used in the design

(b) The above requirements for storm sewers may be relaxed to a minimum design storm of fifteen-year frequency if proof can be provided that overflows resulting from storms exceeding the design capacity of the sewers will not create any hazardous flooding problems.

(4) The design of siltation basins must conform to specifications of the Hunterdon County Soil Conservation District.

(5) The design of retention or detention basins must be accompanied by drainage calculations which shall include existing and proposed flow hydrographs for storms ranging from six-month to one-hundred-year recurrent intervals.

(6) The design of grading and drainage shall be done in such a manner that all flows occurring during the required design storm shall enter the stormwater control device and shall not overflow elsewhere uncontrolled

(7) The design of driveways and access shall be in accordance with any township ordinance requiring a driveway permit. and such as shall not collect excessive amounts of water or significantly change existing drainage patterns in a manner resulting in increased flow or flow velocities where driveways or accessways intersect existing roadways Where this is not feasible or practical, recharge basins or other devices shall be provided to collect the excess runoff before it reaches the roadway

The stormwater control plan must include the following:

A.The lot and block number, North arrow, scale and name and address of applicant and owner of the lot.

B. Topographic contours showing existing and proposed grades at a minimum of two-foot contour interval for slopes less than ten percent (10%) and a five-foot contour interval for slopes of ten percent (10%) or greater of the site

C.All existing and proposed features on the site.

D. Locations and details of all existing and proposed stormwater control devices.

E. Designations of those areas which are to remain undisturbed.

F.The subsurface soil types as taken from the Soil Survey of Hunterdon County, New Jersey.

G. A schedule of the construction sequence for the project and a time limit for completion of improvements

H.Specifications for ground stabilization including a schedule for seeding, lime, fertilizer and mulch

I.The plan must be accompanied by appropriate drainage calculations and drainage area map where required

In the case of a proposed site plan or subdivision, the Township Planning Board or Board of Adjustment reviewing the proposal, or, in case of a proposed construction permit, the Township Development Regulations Officer, may require the posting of a performance anti/or maintenance bond where the construction is not completed prior to the issuance of site plan or subdivision approval or the issuance of a construction permit. as the case may be In case of a major subdivision plan, the bonding required for the stormwater runoff controls shall be included in the bonding for the other improvements The form of the bond shall be approved by the Township Attorney. Such bond shall have a sufficient surety and be in an amount approved by the Township Engineer as adequate to cover the cost of the measures to be taken as part of the approved plan

The Township Engineer shall inspect the construction of the improvements as shown on the approved stormwater runoff control plan. Should construction not be completed by the time limit specified, the applicant must request an extension of such time limit from the Planning Board, Board of Adjustment or Development Regulations Officer, whichever granted plan approval

At the time of submitting the stormwater control plan, and prior to approval of the plan, the applicant shall submit the following nonrefundable fees for review of the plan Such fee shall be submitted to the municipal agency (Planning Board or Board of Adjustment) Secretary if for a plan required in conjunction with a minor subdivision or minor site plan or for an individual lot in a major subdivision and to the Development Regulations Officer if in conjunction with a residential construction permit Fees shall be payable to the township

A.No separate fee shall be charged for review of stormwater runoff control plans prepared for major subdivisions or major site plans, the fees required for major subdivision or major site plan approval shall be considered also as the fee for review of such stormwater runoff plans

B. Fees for review of stormwater runoff control plans prepared for individual lots in major subdivisions or for minor subdivisions or minor site plans, where required, shall be seventy-five dollars ($75 ) per lot or site

C.Fees for review of stormwater runoff control plans for individual lots required for the issuance of a residential construction permit shall be seventy-five dollars ($75) per lot

A.Stormwater control runoff plans and calculations shall be submitted to the township official to whom the review fee is to be submitted or to the Secretary of the municipal agency reviewing the major subdivision or major site plan with which such plan is associated. The plan shall be referred to the Township Engineer who shall review the same. The Township Engineer shall make his recommendation thereon to the reviewing municipal agency if prepared for a major or minor subdivision, major or minor site plan or individual lot within a major subdivision. The Township Engineer shall make his recommendation to the Development Regulations Officer if the plan is submitted for a residential construction permit. When the plan required hereunder is prepared for a major or minor subdivision or site plan, it shall be considered as part of the application for preliminary major subdivision or site plan or minor subdivision or site plan approval, as the case may be. If the plan submitted hereunder is complete and conforms to the requirements of this Part 3, it shall be approved, otherwise, it shall be rejected If such plan is prepared for a major or minor subdivision or site plan, or for an individual lot in a major subdivision, the approval or rejection, on recommendation of the Township Engineer, shall be made by the municipal agency (Planning Board or Board of Adjustment) reviewing the Proposed development. If the plan is for a residential construction permit the approval or rejection, on recommendation of the Township Engineer, shall be by the Development Regulations Officer

B.A municipal agency approving or rejecting a plan must act within the same period of time from submission of a complete application as is required in the particular instance for preliminary major or minor subdivision or site plan approval of the proposed development for which the plan is submitted. The Development Regulations Officer approving or rejecting the plan shall act within thirty (30) days of a complete submission as required by this Part 3. Reasons for any rejection of a plan shall be communicated to the applicant

There shall be no separate fee for inspection of improvements required as part of an approved plan if the plan was approved in conjunction with a major or minor site plan or subdivision or an individual lot in a major subdivision. If the approved plan is in conjunction with a residential construction permit, there shall be submitted to the Development Regulations Officer a fee of one hundred dollars ($100.), payable to the township, following the approval of the plan required hereunder and prior to the issuance of the residential construction permit Such fee of one hundred dollars ($100.) is to cover the cost of inspection of the improvements required by the plan Inspection fees required for the inspection of improvements associated with a subdivision or site plan under the Holland Township Development Regulations Ordinance (1977) shall be calculated to include improvements required by the plan approved under this Part 3.

A.The governing body may prescribe penalties for the violation of ordinances it may have authority to pass. either by imprisonment in the county jail or in any place provided by the municipality for the detention of prisoners for any term not exceeding ninety (90) days or by a fine not exceeding one thousand dollars ($1,000 ) or both The court before which any person is convicted of violating this Part 3 shall have power to impose any fine or term of imprisonment not exceeding the maximum fixed in this Part 3

B.Any person convicted of the violation of this Part 3 may, in the discretion of the court by which he was convicted, and in default of the payment of any fine imposed therefor, be imprisoned in the county jail or place of detention provided by the municipality for any term not exceeding ninety (90) days