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Home My WebLink AboutDEP Remedial Use Approval - Presby Environmental, Inc. i _, f' � . Commonwealth of Massachusetts � Executive Office of Energy &Environmentai Affairs , � _�_____._______..__...�.._.._�___.__._____,�._.,�_._._.,._____.�..._.__..n_. ...��___.__ _.__._____._._�_____.____.._-- _ , Department af Environmental �'rotec,tion One Winter Street Boston, MA 02108•617-292-5500 QEVAL L.PATRICK MAEVE VAILELY BARTII=TT Goveriior Secretary DAVID W.GASH C;ommissioner REMEDIAL USE APPROVAL �� Pursuant to Title 5, 310 CMR 15.00 SE� 2 4 2U15 Name and Address of Applicant: HEALTN DEPT. Presby Environmental, Inc. 143 Airport Road Whitefield,NH 03598 Trade name of technology and models: Presby Enviro-Septic�Wastewater Treatment � System (hereinafter called the"System"). The Massachusetts Enviro-Septic0 Wastewater ' Treatment System Quick Reference Guide including schematic drawings of t,ypical Systems, an inspection checklist, and a System Installation Form are part of this Approval. Transmittal Number: X233395 Date of Issuance: Revised September 26, 2014 Authority for Issuance ; Pursuant to Title 5 of the State Environmental Code, 310 CMR 15.000,the Department of Environmental, Protection hereby issues this Approval for Remedial Use to: Presby Environmental, Inc.,143 Airport Road,Whitefield,NH 03598 (hereinafter"the Company"), ; certifying the System described herein for Remedial Use in the Commonwealth of ' Massachusetts. The sale, design, installation, and use of the System are cor�<iitioned on compliance by the Company,the Designer,the Installer and the System Owner with the terms and conditions set forth below. Any noncompliance with the terms or conditions of this Approval constitutes a violation of 310 CNIR 15.000. ' � �d� s 5e tp ember 26, 2014 David Ferris, Director Date ! Wastewater Management Program ' Bureau of Resource Protection This information is avaflable in alternate format.Call Michelle Waters-Ekanem,Diversity Director,at 617-292-5751.TI�D#1-868-b39-7622 or 1•617-574-6868 MassDEP Website:www.mass.gov/dep Printed on Recycled Paper I � i Revised Remedial Use Approval—Special Conditions Page 2 of 4 � Presby Enviro-Septic Wastewater Treatment System Issuance Date: September 26,2014 Technology Description The System is an alternative subsurface Soil Absorption System (SAS)that replaces a conventional SAS designed in accordance with 310 CMK 15.000. The System consists of an 11 5/8-inch diameter corrugated, high-density plastic pipe with a 9.5-inch interior diameter and a standard length per unit of 10 feet. The pipe is perforated with eight holes equally distributed around its inner circumference at each corrugation. Each hole has a plastic skimmer extending ' inwards. The exterior of the pipe has ridges on the peak of each corrugation and is wrapped with i two layers of fabric material. The inner layer is a thick layer of coarse, randmmly oriented polypropylene fibers. The outer fabric layer is a non-woven geo-textile polypropylene. The System includes required connectors designed to connect pipe units together. The Systezn also includes six inches of sand, specified as concrete sand meeting ASTM C-33 (also called `System sand'), surrounding the pipe on all sides. Conditions of Approval The term "System" refers to the Alternative Soil Absorption System in c,ombination with the other components of an on-site treatment and disposal system that may be required to serve a facility in accordance with 310 CMR 15.000. The term"Approval" refers to the technology-specific Special Conditions,the Standard � Conditions for General and Remedial Use Approval of Alternative Soil Absorption Systems (the `Standard Conditions'),the General Conditions of 310 CMR 15.287, and any Attachments. For Alternative Soil Absorption Systems that have been issued Remedial Use Approval for the installation of Systems to serve facilities where the site meets the requirements for nf�w construction,the Department authorizes reductions in the effective leaching area(310 CMR 15.242), subject to the applicable portions of the Standard Conditions, and subject to the below � Special Conditions applicable to this Technology. � i Special Conditions i l. The System is an approved Patented Sand Filter System for use as an Alternativ� Soil � Absorption System. In addition to the Special Conditions contained in this Approval, the System shall comply with all Standard Conditions for Alternative Soil Absorption Systems, except where stated otherwise in these Special Conditions. ' 2. This Approval applies to the installation of a System for the upgrade or replacement of an existing failed or nonconforming system,provided that the facility meets the siting ' requirements for upgrades, as provided in II(7) and II(9) of the Standard Conditions. For the upgrade or replacement of an existing failed or nonconforming system, a.il installed Systems shall also comply with the Notice requirement of paragraph II(23) and the transferee notification requirements of paragraph IV(1) of the Standard Conditions. The proposed use of the System shall also comply with any other Standard Conditions which pertain wholly or in part to upgrades of existing systems. ; 3. SAS Design -For the upgrade or replacement of an existing failed or nanconfonnin€; system, ', Systems sited in soils with a percolation rate of 60 minutes or less per inch,the size of the � � � Revised Remedial Use Approval—Special Conditions Page 3 of 4 .� Presby Enviro-Septic Wastewater Treatment System Issuance Date: September 26,2014 SAS shall be sized with 40 percent less effective leaching area than required wh�n u.�ing the loading rates for gravity systems of 310 CMR 15.242(1)(a). For soils with a recorded percolation rate of between 60 and 90 minutes per inch,the size of the SAS shall be sized with 40 percent less effective leaching area than required when using th� loading ratc;of 0.15 gpd/square foot as specified by 310 CMR 15.245(4). � No reduction greater than 40% in the required effective leaching area is �llowed, inc�uding � any reductions under a LUA or a variance. �� \��,�� The required effective leaching area of the SAS shall be reduced in accordance with the �, above requirements, except a minimum of 400 square feet of effective leaching area shall be provided if any proposed reduction in the leaching area would result in less than 400 square feet of effective leaching area. Where 400 square feet of effective leaching is not feasible, the greatest effective leaching area shall be installed provided that no more than a 40 percent reduction is taken. 4. Alternative Design Standards -Provided that the Designer demonstrates�that the impact of the proposed Alternative System has been considered and the design reqizirements oi'310 CMR 15.000 have been varied to the least degree necessary so as to allow for both the best feasible upgrade within the borders of the lot and the least effect on publzc health, safety, / �� welfare and the environment,the local approving authority may allow any combination of the �t, following alternative design standards without the need for granting a variance under 310 i �� , CMR 15.400 or obtaining Department approval: ,-F-, a) If a reduction in the depth to �roundwater required by 310 CMR 15.212 is necessary,the ��'��' �� depth to groundwater may be reduced by up to 2 feet,resulting in a minimum separation � ry�' distance of two feet in soils with a recorded percolation rate of more�than two minutes per � �"`' inch and three feet in soils with a recorded percolation rate of two minutes or less per � inch, measured from the bottom of the soil absorption system to the high groundwater �1�� elevation, only if; i. An approved Soil Evaluator who is a member or agent of the local Approving Authority determines the high groundwater elevation; ii. No reduction is granted under LUA for setbacks from public or private wells, ,' bordering vegetated wetlands, surface waters, salt marshes, coastal banks, ce;rtified ; vernal pools, water supply lines, surface water supplies or tributaries to surface water supplies, or drains which discharge to surface water supplies or their tributaries, is f allowed; and � iii. In accordance with 310 CMR 15.212(2), for systems with a design flow of 2,,000 gpd or greater,the separation to high groundwater as required by 310 CMR 15.212(1) shall be calculated after adding the effect of groundwater mounding to the high groundwater elevation as determined pursuant to 310 CMK 15.103(3). b) If a reduction in the depth of the naturally occurring pervious material layer is necessary, a proposed reduction of up to 2 feet may be allowed in the four feet of naturally occurring pervious material layer required by 310 CMR 15.240(1)provided that it has been i demonstrated that no greater depth in naturally occurring pervious material can be met anywhere on the site. ; ; t Revised Remedial Use Approval—Speciai Conditions Page 4 oi'4 � Presby Enviro-Septic Wastewater Treatment System � Issuance Date: September 26,2014 � I 5. In no case, shall the reductions in the effective leaching area, depth to groundwater, and ' depth of naturally occurring pervious material allowed under this Approval be made less stringent. Any reductions in the effective leaching area, depth to grounc�water, and depth of naturally occurring pervious material allowed under this Approval shall not be combined with any reduction that may allowed under the procedures of Local Upgrade Approval or the variance procedures of 310 CMR 15.401-413. The local Approving Authority may vary other design requirements under the LUA provisions of 310 CMR 15.405 or under the variance procedures of 310 CNIlZ 15.411. 6. The System shall only be installed in bed or field configuration, as described in 310 CMR 15.252. The System shall not be installed in trench configuration and no sidewall area shall be considered in the total effective leaching area provided. The effective leaching ai•ea shall be the bottom area only (length times width) of the sand bed. 7. Systems shall be installed with differential venting for aeration and inspection access at end of each run of pipe, section or serial bed and whenever the System is in:�talled under impervious surfaces. 8. Serial distribution laterals shall be limited to no more than 500 gpd with each lateral a maximum of 100 feet, and must be laid level. Multi-level systems shall not be allowed. 9. System component material specifications for the pipe,plastic compon�rrts, fabric arid sand shall comply with the specifications identified in the initial I/A technolo�,ry approval, Prior approval from the Department for any change from these specifications shall be requested in writing. 10. Any changes to the approved plans must receive Local Approving Authority(LAA) approval ' prior to any changes. Before a Certificate of Compliance can be issued Uy the LAA the System Designer must include any changes to the approved plan into the as-built plans. ' � I