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SSTS Technical Advisory Panel for Product Registration Meeting Notes - June 24, 2008

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SSTS Technical Advisory Panel for Product Registration Meeting Notes from June 24, 2008

MN Dept of Administration, Room 116C Meeting Attendees Committee Members Guests Ed Kerzinski Karl Goetter Mitch Johnson Brian McQuestion Loren Kohnen Mike Sundberg Kemp Ritter Curtis Cluckey Sara Christopherson Dean Person Mike Frauenkron Paul Flynn Bob Whitmyer Doug Fessel Greg Halling Tony Birrittieri Kurt Christopherson MPCA Staff Kevin Kloeppner Barb McCarthy Gretchen Sabel Mark Wespetal Bill Priebe, Supervisor Leah Hedman, Attorney General Office Welcome and Introductions The Technical Advisory Panel (TAP) meeting began at 10 am with introductions and review of the Agenda. Barb McCarthy reviewed the membership list with the group. The goal was to have representation from each SSTS discipline with representation across Minnesota. TAP Meeting - General Operating Practices Ground Rules: Gretchen Sabel presented the SSTS Advisory Committee’s ground rules as a starting point for TAP’s consideration. Discussion points included:

• What is the term for the members? Not specified, indeterminate • Should there be attendance criteria? Please let MPCA know if you won’t be there;

otherwise make a good effort to attend. All are needed. • What is the meeting frequency? OK with monthly meetings, then as needed.

Phone meetings are allowed and may be necessary from time to time. • Should we allow alternate members? No, not appropriate since each is

representing themselves as members of a discipline, not necessarily an organization.

• Should the TAP want to elect a chair? Yes. • What is the decision making process? Discuss thoroughly before vote so that all

sides are heard and all understand. Members may share their views before the


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meeting if they will not be in attendance and staff will make sure all are aware of them. A vote will be made; this recommendation would then be provided to the Agency.

• How do we ensure information gets out there to practitioners and LGU’s? MPCA will investigate use of an electronic bulletin board or some other means.

• For voting members, what is a quorum? Go for “majority” now, no quorum. • How to deal with incomplete applications? MPCA will review for completeness.

Incomplete applications will be sent back and the 60-day period will begin anew. • How will applications be tracked? By MPCA in a spreadsheet which will be

shared with TAP members. • Will the TAP review all applications before listing? Yes • What is the relationship of TAP with the SSTS Advisory Committee? The TAP

and the Advisory Committee both provide advice and support to the MPCA. TAP advises MPCA directly then reports to Advisory Committee with communication through SSTS AC representative. If MPCA does not follow the TAP or SSTS AC’s advice, MPCA needs to explain how their response differed and why.

The Ground Rules will be revised based on this discussion and presented to the TAP at the July 24, 2008 meeting. Meeting Dates and Location: The TAP was OK with meeting in the Capitol Complex. Dates for subsequent meetings should be discussed and set at the end of each meeting. Next meeting is July 24, 2008. Sara Christopherson cannot attend, but she will find someone from the University of Minnesota to attend. Website: Is it OK to post the names of TAP members here? Yes. MPCA will be responsible for maintaining the website. Election of Chair: One person was nominated for chair, Bob Whitmyer. All voted in favor. Roles: Barb McCarthy reviewed the draft roles document provided in the meeting packet. Discussion followed.

• Is the TAP a subcommittee of the SSTS Advisory Committee? No, it’s more of an adjunct committee in that it directly advises the MPCA but does report its actions to the SSTS Advisory Committee. The Advisory Committee may raise any concerns about decisions or the process.

• Communication with the industry, especially regulators, needs to be quick; MPCA’s role here needs to be clear. MPCA should send out a summary sheet for each registered product as soon as it is listed; this may take the form of the letter from MPCA to the vendor that confirms the listing.


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Overview of Product Registration Process Barb McCarthy provided an overview of the product registration process. This included an overview of the current website, the applications for treatment and distribution products and the fact sheet. An overview of the process was provided using a powerpoint presentation. There was discussion regarding the process.

• For distribution media, what specific protocol needs to be met? The current answer is there is none at this time; NSF is in the process of developing a standard. Therefore, this will be a challenge for TAP in its determination of downsizing. The industry said that other states have protocols that were passed.

• Media and mound sizing – bottom area only for beds. So, it will be the same footprint as a mound rockbed. Submitted manuals can have the drawings for how to put into mounds, at-grades etc….

• List of Registered Treatment Products - What does the listing look like? Both treatment and distribution products are combined in Washington’s list, do we want separate list?

• Washington’s list is a bit different than ours (category names, and N and P treatment). Categories and treatment levels are different. Categories are domestic and high strength and treatment levels are A, B and C.

• So, those in high strength waste, they will only try for treatment level C. Sara said we need three categories. Flow numbers should be listed as rated capacity, and is this max or average flow? So, the current listing is confusing to permitting. Need to transfer the flow into bedrooms. Shouldn’t come up with different flow numbers than what we have. Should we use a range? The designer should think thru the flow amounts. The process would say what the rule says, what is the purpose of the list? Why does the rated capacity say, what does it mean? The list must be useful, so you need a rating capacity. List residential separately than commercial. So, just say high strength and domestic, don’t say much else. They have one recommended standard and guidance document. Start with one and expand in the future. Treatment train is included in the registration.

• Just a couple of pages of media products. How to denote the sizing, keep the same as it is or go with reductions? Add column of reduction if given. Use to doing the sidewall credit. Or each chamber listed with the reduction or what the standard size is. Some of the listing is somewhat extraneous and unnecessary. Adds to the confusion. Some states are just giving a sizing number. Ok to move to this type of sizing. No current guidance on drip dispersal.

• How to deal with Elgin, who claims both treatment and dispersal? The manufacturer should verify, also drip might claim P reduction. Sara want’s simple, not a book. List in back is important, not all the numbers. So, table with treatment level A, B and C.

• Approve by the technology, not each size of the component, by the process. Volume should not make a difference. Greg disagrees, for each product, except for adding another component. NSF certifies one size and then allow certification base on the end-point 1500 gpd. Come with a draft table for next meeting. Mike crafted a table. Will separate treatment and dispersal to start with.


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• Have a glossary of terms. Need tech guidance. What about remediation technologies. We only have a few sentences in the rule related to remediation. What about a tank listing and water conservation?

• Yellow sheet, 3 listings tanks, etc….. . Use MSA documents and proprietary products start right away.

• Tanks, bunch of stuff they must meet. • Ok to put drip under distribution media, may have differences in installation.

MSA are books, not really guidance documents. So, have great inconsistencies between MSA and proprietary information.

• Bring MSA documents to this panel – perhaps July 24th meeting if ready to review.

• Started to review a flow chart, not completed (green sheet). Open Forum Sizing chart must be done for media. Meet treatment levels with UV in the treatment train? If you meet B and UV light is tested at B, then need to retest? No, if UV light is tested at a quality, then OK. Question is whether it needs to be tested? No. Tannins from peat filters may not work as well with UV than with another filter w/o tannins. Sara, if effluent is the same, then the UV approval should be transferable. Any feedback on renewal? Bob is rethinking based on interactions? What are the testing requirements after it is put in the ground? Operating permits must be specific and get some data. Need to provide guidance to local units of government on compliance and operating permit requirements. If not using NSF standards for operation, then what is the compliance levels? Then how long do you have to come back into compliance? Is it based on annual average compliance or individual values? All issues should be spelled out in the operating permit. Other states have stuff in codes and did not follow up with requiring field data. Need a starting point (doable) otherwise no compliance. What about start-up compliance? Small number of housing units could complicate the issue. One manual has an 8-week start-up, is that OK? Especially for seasonal with intermittent use? Mass study indicates that system will not be compliance 100% of the time. So, support timed dosing to ensure better treatment. So, what is the acceptable variable? Instead of sampling, have better indicator operational care and maintenance. System owners do not like service provider visits, ask “when is this scrutiny going to end?” There is lots of work to do; we hope all will stick with it July 24th from 10:00 to 3:30. Hand outs will be out 1 week before the next meeting along with parking permits. We expect the next meeting to have 1or 2 applications. MPCA needs to send out applications as soon as ready. Next Meeting Date July 24, 2008 from 10:00 – 3:30 Capitol Complex. Meeting ended at 3:20

Draft for Panel Review: July 24, 2008 1

SSTS Technical Advisory Panel for Product Registration Ground Rules for Meetings

Purpose and Charge The Minnesota Pollution Control Agency’s (MPCA) Subsurface Sewage Treatment Systems (SSTS) Program is responsible for building a regulatory framework for and licensure of practitioners who design, install and maintain soil based wastewater treatment systems. This program performs an important function in ensuring that new and existing systems are working properly to protect public health and the environment from untreated wastewater. Counties, cities and townships operate as co-regulators and have a significant role in adopting and enforcing SSTS regulations. The Technical Advisory Panel (TAP) was formed as an adjunct committee to the SSTS Advisory Committee to focus solely on the Product Registration process and outcomes. Meeting Frequency The TAP will be scheduled to meet monthly in the first six months, and then reduce frequency as appropriate. Each meeting will average six hours in length with a few meetings on critical issues to last longer. If a critical issue needs to be addressed, the TAP may call special meetings. Further, the TAP may consider email and/or conference call options to facilitate member participation. Membership and Chair Members represent various disciplines and expertise in the SSTS industry. The member’s expertise and affiliations were approved by the SSTS Advisory Committee, as follows:

• SSTS Advisory Committee Member • Local Unit of Government (QE) representative • Designer • Advanced Designer (Experienced in performing advanced design work and have

attended related continuing education courses) • Installer • Inspector • Advanced Inspector (Experienced in reviewing and/or inspecting advanced design

work and have attended related continuing education courses) • Maintainer (previously Pumper) • Service Provider (Attended service provider training and have related experience

as a service provider) • Professional Engineer • Professional Soil Scientist • U of M Onsite Sewage Treatment Program Professional Employee

The Advanced Designer position will remain vacant until certification of Advanced Designers begins in the summer of 2009.


The TAP shall elect a chair from among its members, and may elect other officers as necessary. The chair will work with the MPCA in planning and running the meetings The member representing the SSTS Advisory Committee will be responsible for reporting back to that committee on the TAP’s work. TAP members will not allow themselves to be lobbied or influenced by any product vendor outside the TAP’s work. Communications with vendors regarding Product Registration applications and reviews will be avoided; vendors are to be referred to MPCA staff. Attendance and Alternates Members The member should make a valiant attempt to notify the Minnesota Pollution Control Agency contact if they will miss a meeting. TAP members cannot appoint alternate voting members. If the member is absent, work will go on in their absence. However, if a particular issue requires specific expertise and that member will be absent, measures will be taken to ensure that their views are brought to the TAP for the discussion. Ensuring Full Participation All members are expected to fully participate in the work of the TAP. The agenda will be adequately prepared to allow for presentation of information and adequate discussion of the issue. All committee members will commit to considering and understanding differing points of view creating a culture where it is the norm for everyone to feel comfortable to offer and discuss diverse ideas. Members can call for a “check-in” with other members or the full group. We will question ideas, not the person. We will encourage and respond respectfully to questions. We will explain the reasoning behind our statements. Work Groups Work Groups may be formed to consider and report on subjects requiring special study. The TAP will determine the make-up and number of members of the Work Group(s) with advice from the SSTS Advisory Committee. The members of said groups should be diverse in background and have experience with the subjects being studied by the group(s).


Non-TAP and non-Advisory Committee persons may be appointed to Work Groups to gain additional expertise and/or diversity of background and experience. The Work Group(s) will be charged with an issue for study as determined by the TAP. The Work Group(s) responsibility will be to review the issue and make written recommendations back to the TAP in a time and manner determined by the TAP. The work group will keep a record of its findings and conclusions on the topic to be presented to the TAP with the recommendations. The Workgroup leader will keep a file that is passed on to subsequent leaders of the workgroup that documents meetings held, attendees, and work undertaken, as well as any completed products of the Workgroup. Use of Technical Expertise Any member can propose a non-TAP member for a technical resource group to the TAP or Work Group. Any member can propose expertise to inform and provide balance for TAP deliberation. Need for expertise for TAP discussion will be decided on a case-by-case basis. Non-member Participation TAP meetings will be open to the public. We will encourage discussion and comments from the audience but decision making will reside with the voting membership of the TAP. We will encourage the use of a Website/e-mail list for information on meetings and the process. TAP members will not allow themselves to be lobbied or influenced by any product vendor outside the TAP’s work. Communications with vendors regarding Product Registration applications and reviews will be avoided; vendors are to be referred to MPCA staff. Consensus Decision Making Process We will define consensus as the whole group consents, that is, can live with the decision (70 per cent comfortable/100 per cent willing to support). Each decision will have some members more comfortable on the matter than others. Consensus will reflect a decision that everyone can live with, after thorough discussion and exchange of ideas. We will make every effort to solicit opinions so that all views are considered, and encourage minority interests to speak. We would like the consensus documents to reflect not only the consensus but also concerns of minority viewpoints in a less formal way than minority reports. By describing those viewpoints, we inform the Commissioner of the Minnesota Pollution Control Agency and the Legislature of our concerns.


The need for a more formal minority report will be determined on a case-by-case basis. Interim consensus will be developed on parts of the TAP’s product until the whole is worked through. Only after real effort to find consensus will the TAP move forward without it. When consensus cannot be achieved, any decision to move forward without it, towards a vote of the members, will be made by consensus. Voting will be initiated by a motion and second. A discussion period will be offered before the vote is taken. There is no minimum number of members who must be present for a vote to be taken. Votes may be taken on a conference call as well. If members of the TAP are not present for a discussion or consensus, they are accountable for representing the decision fairly. Recognizing the Common Good We will strive to create an atmosphere where interests and the common good of Minnesota can be discussed with respect and understanding. Maintenance MPCA staff will get information to members as quickly as possible. MPCA staff will maintain a website with information on Product Registration applications received as well as the TAP’s work. Time-sensitive Issues When key issues demand member response between TAP meetings, email and conference calls will be used to resolve issues. Emails and notes from the conference calls will become part of the official files of the TAP. Meeting Notes and Record Keeping Staff will send draft meeting summaries to members in advance. Official files of the TAP will include emails, meeting and conference call notes, agendas and other documents necessary to record the decision-making process. Changes to Ground Rules The TAP should periodically review these ground rules and use decision making processes outlined in these rules to make changes when necessary.

July 24, 2008

Website for Technical Advisory Panel – Product Registration TAP Committee Members

• Sara Christopherson, University of Minnesota • Joe Enfield, Local Unit of Government • Mike Frauenkron, Installer • Greg Halling, Engineer • Mitch Johnson, Designer • Ed Kerzinski, Inspector • Loren Kohnen, SSTS Advisory Committee • Kemp Ritter, Maintainer/Operator • Chad Viland, Inspector • Bob Whitmyer, Soil Scientist (Chair)

2008 Meeting Calendar

• June 24, 2008 (Tue) 10:00-3:30 Minnesota Dept. of Administration; Room 116C; Sherburne and Cedar Streets, St. Paul

o Agenda o Handouts o Meeting Notes

• July 24, 2008 (Thurs) 10:00-3:30 Veterans Service Bldg; 5th Floor Conference Room; 20 West 12th Street, St. Paul


• Aug 2008 No Meeting Scheduled • Sept 25, 2008 (Thur) 10:00-3:30 Minnesota Dept. of Administration; Room 116C;

Sherburne and Cedar Streets, St. Paul o Agenda o Handouts o Meeting Notes

• Oct 23, 2008 (Thur) 10:00-3:30 30 Minnesota Dept. of Administration; Room 116C; Sherburne and Cedar Streets, St. Paul


July 24, 2008

• Nov 20, 2008 (Thur) 10:00-3:30 Veterans Service Bldg; 5th Floor Conference Room;

20 West 12th Street, St. Paul o Agenda o Handouts o Meeting Notes

• Dec 18, 2008 (Thur) 10:00-3:30 Minnesota Dept. of Administration; Room 116C; Sherburne and Cedar Streets, St. Paul


2009 Meeting Calendar

• Jan 22, 2009 (Thur) 10:00-3:30 Minnesota Dept. of Administration; Room 116C;

Sherburne and Cedar Streets, St. Paul o Agenda o Handouts o Meeting Notes

• Feb 19, 2009 (Thur) 10:00-3:30 Minnesota Dept. of Administration; Room 116C; Sherburne and Cedar Streets, St. Paul


SSTS Technical Advisory Panel July 24, 2008 Meeting

Duties of the Chair - Technical Advisory Panel July 24, 2008

1. Work with MPCA in planning and running the meetings, help to clarify issues at the

meetings, adhere to agenda schedule 2. Help MPCA develop agendas (at least review and comments on draft agendas, as

needed) 3. Assist with reporting at SSTS Advisory Committee Meetings 4. Review meeting Notes (Minutes) 5. Assist in determining need for outside resources

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Proprietary Treatment ProductsApplication for Registration

Subsurface Sewage Treatment System

For more information or additional copies contact: Minnesota Pollution Control Agency Phone number: 218-723-4710 Municipal Division 520 North Lafayette Road St. Paul, MN 55155

Type of review requested: Initial Product Registration Product Registration Renewal

Applicant Information Proprietary Treatment Product

Manufacturer’s name: Product name:

Address: Model:

City:

State: ZIP:

Contact’s name: Proprietary Treatment Product check all that apply

Contact’s title: Category A (designed to treat residential sewage)

Contact’s address: if different from Manufacturer’s Category B (designed to treat high-strength sewage)

Address: Total Nitrogen Reduction (in Categories A and B)

City: Total Phosphorus Reduction (in Categories A and B)

State: ZIP:

Phone number: Fax: Date of Application:

E-mail:

Website:

General Requirements for Submittal

All submitted material (written responses and other materials) must be legible, typed, or printed. Handwritten responses to the application questions or handwritten notes or other submitted documentation may, at the discretion of the department, result in rejection of the application. Products within a single series or model line (sharing distinct similarities in design, materials, and capacities) may be registered under a single application. Products outside of the series or model line must be registered under separate applications.

New Registration Requirements

Manufacturers who wish to sell or distribute a proprietary treatment product for use in Minnesota must request and obtain department review and registration of their products by submitting a complete application form, including:

(a) Comprehensive, yet concise, response to the information outlined in Minnesota Rules Chapter 7083.4000 to 7083.4120.

Renewal Registration Requirements

All product registrations expire on December 31 the third year following initial registration, unless the product is recalled, defective, or no longer available. Manufacturers desiring to continue product registration must request and obtain MPCA review and renewal by submitting a complete application, including:

(a) Retesting results if the product has completed retesting since initial registration or previous renewal

(b) The Verification Affidavit form in response to the information required in Minnesota Rules Chapter 7083.4040 E.

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Definitions

Proprietary product A sewage treatment and distribution technology, method, or material subject to a patent or

trademark

Public domain technology A sewage treatment or distribution technology, method, or material not subject to a patent or

trademark

Residential sewage Sewage having the constituency and strength typical of wastewater from domestic households

Proprietary Treatment Medium Registration Process and Requirements (Chapter 7083.4000)

The questionnaire for review and registration of a proprietary treatment product consists of fours parts: applicant information, product information, testing results, and certification. All applicants must provide a complete written response to the following information:

Applicant information

(a) Manufacturer's name, mailing address, street address and telephone number

(b) Contact individual's name, title, mailing address, street address, and telephone number. The contact individual must be

a company official with the authority to act as the agent of the manufacturer in this capacity.

Product information (c) Name, including specific brand and model, of the proprietary treatment media

(d) A description of the function of the proprietary treatment product along with any known limitation on its use

(e) A product description and technical information, including process-flow drawings and schematics; materials and characteristics; component design specifications; design capacity, volumes and flow assumptions and calculations; components; dimensioned drawings and photos

(f) For treatment systems in Category B, daily capacity of the model or models in pounds- per-day of CBOD5

(g) Siting and installation requirements

(h) Detailed description, procedure and schedule of routine service and system maintenance events

(i) Estimated operational costs for the first five years of the treatment component's life. This shall include both estimated

annual electricity costs, and routine maintenance costs, including replacement of parts

(j) Identification of information requested by applicant to be protected from disclosure of trade secrets or confidential

business information

(k) Copies of product brochures and manuals: such as sales, promotional, design, installation, operation and maintenance

and homeowner instructions

Testing results

(l) The most-recently-available product test protocol and results report (see Chapter 7083.4000-4060)

(m) All available product testing results, including a listing of state approvals and denials

Certification

(n) A signed and dated certification by the manufacturer's senior executive or authorized agent, specifically including the following statement: "I certify that I represent (insert manufacturing company name) and I am authorized to prepare or direct the preparation of this application for registration. I attest, under penalty of law, that this document and all attachments are true, accurate, and complete. I understand and accept that the product testing results reported in this application for registration are the parameters and values to be used for determining conformance with treatment system performance testing levels established in Minnesota Rules, part 7083.4030”.

(o) A signed and dated certification from the testing entity including the statement, "I certify that I represent (insert testing entity name), and I am authorized to report the testing results for this proprietary product. I attest, under penalty of law, that the report about the test protocol and results is true, accurate, and complete."

Fees No fees for proprietary product registration are established at this time

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Treatment Products - 7/24/08 TAP Meeting 50.1 7083.4000 PRODUCT REVIEW AND REGISTRATION PROCESS. 50.2 Subpart 1. General. 50.3 A. The commissioner shall develop a product review 50.4 and registration process and maintain a list of registered 50.5 sewage treatment and distribution products for SSTS. 50.6 B. The commissioner shall develop recommended 50.7 standards and guidance to assist local units of government in 50.8 permitting different types of sewage treatment technologies and 50.9 sewage distribution technologies, including the following five 50.10 categories: 50.11 (1) public domain treatment technologies, such as 50.12 sand filters; 50.13 (2) proprietary treatment technologies, such as 50.14 manufactured aerobic treatment systems; 50.15 (3) public domain distribution technologies, such 50.16 as drainfield rock or generic drainfield rock substitutes; 50.17 (4) proprietary distribution technologies, such 50.18 as gravelless distribution products; and 50.19 (5) proprietary drip dispersal systems. 50.20 C. Sewage technologies shall have standards described 50.21 in this chapter or agency recommended standards and guidance 50.22 before local units of government are allowed to permit them. 50.23 Recommended standards and guidance must include information and 50.24 detail, such as application, design, installation, operation, 50.25 monitoring and maintenance, and performance expectations, and 50.26 sources of the information. 50.27 Subp. 2. Proprietary treatment products; certification and 51.1 registration. 51.2 A. To qualify for product registration, manufacturers 51.3 desiring to sell or distribute proprietary treatment products 51.4 shall: 51.5 (1) verify product performance through testing 51.6 using the testing protocol established in Table I in part 51.7 7083.4010 and register their product with the commissioner using 51.8 the process described in parts 7083.4000 to 7083.4120; 51.9 (2) report test results of influent and effluent 51.10 sampling obtained throughout the testing period, including 51.11 normal and stress loading phases, for evaluation of constituent 51.12 reduction according to Table II in part 7083.4020; 51.13 (3) demonstrate product performance according to 51.14 Table III in part 7083.4030. All 30-day averages and geometric 51.15 means obtained throughout the test period must meet the 51.16 identified threshold values to qualify for registration at that 51.17 threshold level; and 51.18 (4) verify bacteriological reduction according to 51.19 part 7083.4060, for registration at Levels A and B in Table III 51.20 in part 7083.4030. 51.21 B. Manufacturers verifying product performance 51.22 through testing according to the following standards or 51.23 protocols shall have product testing conducted by a qualified, 51.24 third-party testing facility. Product performance testing shall 51.25 be consistent with the following:

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51.26 (1) National Sanitation Foundation (NSF) 51.27 International, Residential Wastewater Treatment Systems, 52.1 Standard 40 (July 2000). The standard is incorporated by 52.2 reference, is available through the Minitex interlibrary loan 52.3 system, and is not subject to frequent change; 52.4 (2) National Sanitation Foundation (NSF) 52.5 International, Wastewater Treatment Systems - Nitrogen 52.6 Reduction, Standard 245 (2007). The standard is incorporated by 52.7 reference, is available through the Minitex interlibrary loan 52.8 system, and is not subject to frequent change; 52.9 (3) Environmental Protection Agency (EPA) and 52.10 National Sanitation Foundation (NSF), Protocol for the 52.11 Verification of Wastewater Treatment Technologies (April 2001). 52.12 The protocol is incorporated by reference, is available through 52.13 the Minitex interlibrary loan system, and is not subject to 52.14 frequent change; 52.15 (4) Environmental Protection Agency (EPA) 52.16 Environmental Technology Verification (ETV) Program, Protocol 52.17 for the Verification of Residential Wastewater Treatment 52.18 Technologies for Nutrient Reduction (November 2000). The 52.19 protocol is incorporated by reference, is available through the 52.20 Minitex interlibrary loan system, and is not subject to frequent 52.21 change; 52.22 (5) European Committee for Standardization (CEN), 52.23 Small Wastewater Treatment Systems for up to 50 PT - Part 3: 52.24 Packaged and/or Site Assembled Domestic Wastewater Treatment 52.25 Plants, EN 12566-3 (October 2003). The standard is incorporated 52.26 by reference, is available through the Minitex interlibrary loan 52.27 system, and is not subject to frequent change; 53.1 (6) other equivalent protocols and standards 53.2 consistent with the above-referenced standards and protocol to 53.3 verify product performance as approved by the commissioner; and 53.4 (7) protocol for bacteriological reduction 53.5 described in part 7083.4060. 53.6 C. Treatment levels used in part 7083.4030 are not 53.7 intended to be applied as field compliance standards. Their 53.8 intended use is to establish treatment product performance in a 53.9 product testing setting under established protocols by qualified 53.10 testing entities.

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53.11 7083.4010 TESTING REQUIREMENTS FOR PROPRIETARY TREATMENT 53.12 PRODUCTS. 53.13 The testing protocols in this part are incorporated by 53.14 reference under part 7083.4000, subpart 2, item B. 53.15 TABLE I 53.16 Treatment component/ 53.17 sequence category Required testing protocol 53.18 ----------------------------------------------------------------- 53.19 Category A: Designed to treat NSF Residential Wastewater 53.20 sewage with strength typical Treatment Systems, 53.21 of a residential source Standard 40, or CEN European 53.22 when septic tank effluent Standard, EN-12566-3 53.23 is anticipated to be equal 53.24 to or less than treatment 53.25 Level C (Table III, 53.26 part 7083.4030) 53.28 Category B: Designed to treat EPA/NSF Protocol for the 53.29 high-strength sewage when Verification of Wastewater 53.30 septic tank effluent is Treatment Technologies, 53.31 anticipated to be greater than EPA/ETV Protocol for the 53.32 treatment Level C (Table III, Verification of Residential 53.33 part 7083.4030), including Wastewater Treatment 53.34 restaurants, grocery stores, Technologies for 53.35 mini-marts, group homes, medical Nutrient Reduction, or 53.36 clinics, residences, etc. equivalent 53.37 ----------------------------------------------------------------- 53.38 Total nitrogen and EPA Environmental Technology 54.1 phosphorus reduction in Verification, Protocol for the 54.2 Categories A and B Verification of Residential 54.3 Wastewater Treatment 54.4 Technologies for Nutrient 54.5 Reduction, or equivalent or 54.6 NSF Wastewater Treatment 54.7 Systems - Nitrogen Reduction, 54.8 Standard 245

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54.10 7083.4020 TEST RESULTS REPORTING REQUIREMENTS FOR PROPRIETARY 54.11 TREATMENT PRODUCTS. 54.12 TABLE II 54.13 Treatment component/ 54.14 sequence category Testing results reported 54.15 ----------------------------------------------------------------- 54.16 Category A: Designed to treat Report test results for 54.17 sewage with strength typical influent and effluent sampling 54.18 of a residential source obtained throughout the 54.19 when septic tank effluent testing period for evaluation 54.20 is anticipated to be equal of consistent reduction for 54.21 to or less than treatment the parameters CBOD5 and TSS: 54.22 Level C (Table III, - Average 54.23 part 7083.4030) 54.24 - Minimum 54.25 - Median 54.26 - 30-day average (each month) 54.27 - Standard deviation 54.28 - Maximum 54.29 - Interquartile range. 54.31 For bacteriological reduction 54.32 performance, report fecal 54.33 coliform test results of 54.34 influent and effluent sampling 54.35 by geometric mean from 54.36 samples drawn within 30-day or 54.37 monthly calendar periods, 54.38 obtained from a minimum of 54.39 three samples per week 54.40 throughout the testing period. 54.41 See part 7083.4060. 54.42 Test report must also include 54.43 the individual results of all 54.44 samples drawn throughout the 54.45 test period. 54.47 Category B: Designed to treat Report all individual test 54.48 high-strength sewage when results and full test average 54.49 septic tank effluent is values of influent and effluent 54.50 anticipated to be greater than sampling obtained throughout 55.1 treatment Level C (Table III, the testing period for 55.2 part 7083.4030), including CBOD5, TSS, and oil 55.3 restaurants, grocery stores, and grease. 55.4 mini-marts, group homes, Report the treatment capacity 55.5 medical clinics, of the product tested in 55.6 residences, etc. pounds per day for CBOD5. 55.7 ----------------------------------------------------------------- 55.8 Total nitrogen and Report test results on all 55.9 phosphorus reduction in required performance criteria 55.10 Categories A and B according to the format 55.11 prescribed in the test protocol 55.12 described in Table I, 55.13 part 7083.4010.

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55.15 7083.4030 PRODUCT PERFORMANCE REQUIREMENTS FOR PROPRIETARY 55.16 TREATMENT PRODUCTS. 55.17 TABLE III 55.18 Treatment 55.19 component/ 55.20 sequence category Product performance requirements 55.21 ----------------------------------------------------------------- 55.22 Category A: Treatment system performance testing levels 55.23 Designed to treat 55.24 sewage with Level Parameters 55.25 strength typical CBOD5 TSS O&G FC Nutrient 55.26 of a residential (mg/L) (mg/L) (mg/L) (#/100ml) (mg/L) 55.27 source when septic A 15 15 -- 1,000 -- 55.28 tank effluent is B 25 30 -- 10,000 -- 55.29 anticipated to be 55.30 equal to or less C 125 80 20 -- -- 55.31 than treatment TN -- -- -- -- 20 55.32 Level C. TP -- -- -- -- 2 55.33 55.34 Values for Levels A and B are 30-day 55.35 values (averages for CBOD5, TSS, and 55.36 geometric mean for FC). All 30-day 55.37 averages throughout the test period 55.38 must meet these values in order to be 55.39 registered at these levels. Values 55.40 for Levels C, TN, and TP are derived 55.41 from full test averages. 55.42 55.43 Category B: All of the following requirements must be 55.44 Designed to treat met: 55.45 high-strength (1) all full test averages must meet 55.46 sewage when septic Level C; and 55.47 tank effluent is (2) the treatment capacity of the 55.48 anticipated to be product tested in pounds per day for CBOD5 55.49 greater than treat- must be reported. 55.50 ment Level C, 56.1 including 56.2 restaurants, 56.3 grocery stores, 56.4 mini-marts, group 56.5 homes, medical 56.6 clinics, 56.7 residences, etc. 56.8 ----------------------------------------------------------------- 56.9 Total nitrogen and Test results must establish product 56.10 phosphorus performance effluent quality meeting Levels 56.11 reduction in TN and TP, when presented as the full test 56.12 Categories A and B average.

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56.14 7083.4040 PROPRIETARY TREATMENT PRODUCTS REGISTRATION; PROCESS 56.15 AND REQUIREMENTS. 56.16 A. Manufacturers shall register their proprietary 56.17 treatment products with the commissioner by submitting a 56.18 complete application in the format prescribed by the 56.19 commissioner, including: 56.20 (1) the manufacturer's name, mailing address, 56.21 street address, and telephone number; 56.22 (2) the contact individual's name, title, mailing 56.23 address, street address, and telephone number. The contact 56.24 individual must be a company official with the authority to 56.25 represent the manufacturer in this capacity; 56.26 (3) the name, including specific brand and model, 56.27 of the proprietary treatment product; 56.28 (4) a description of the function of the 56.29 proprietary treatment product along with any known limitation of 56.30 the use of the product; 56.31 (5) product description and technical 56.32 information, including process flow drawings and schematics, 56.33 materials and characteristics, component design specifications, 57.1 design capacity, volumes and flow assumptions and calculations, 57.2 components, dimensioned drawings, and photos; 57.3 (6) for treatment systems in Category B, daily 57.4 capacity of the model or models provided in pounds per day of 57.5 CBOD5; 57.6 (7) siting and installation requirements; 57.7 (8) a detailed description, procedure, and 57.8 schedule of routine service and system maintenance events; 57.9 (9) estimated operational costs for the first 57.10 five years of the treatment component's life including estimated 57.11 annual electricity usage and routine maintenance costs, 57.12 including replacement of parts; 57.13 (10) identification of information requested to 57.14 be protected from disclosure of trade secrets or confidential 57.15 business information; 57.16 (11) copies of product brochures and manuals, 57.17 such as sales, promotional, design, installation, operation, and 57.18 maintenance materials and homeowner instructions; 57.19 (12) the most recently available product test 57.20 protocol and results report; 57.21 (13) all available product testing results, 57.22 including a listing of state approvals and denials; 57.23 (14) a signed and dated certification by the 57.24 manufacturer's authorized senior executive or authorized agent 57.25 specifically including the following statement: "I certify that 57.26 I represent (INSERT MANUFACTURING COMPANY HERE) and I am 57.27 authorized to prepare or direct the preparation of this 58.1 application for registration. I attest, under penalty of law, 58.2 that this document and all attachments are true, accurate, and 58.3 complete. I understand and accept that the product testing 58.4 results reported in this application for registration are the 58.5 parameters and values to be used for determining conformance 58.6 with treatment system performance testing levels established in 58.7 Minnesota Rules, part 7083.4030."; 58.8 (15) a signed and dated certification from the 58.9 testing entity including the statement: "I certify that I 58.10 represent (INSERT TESTING ENTITY NAME) and I am authorized to 58.11 report the testing results for this proprietary product. I

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58.12 attest, under penalty of law, that the report about the test 58.13 protocol and results is true, accurate, and complete."; and 58.14 (16) a technology review fee if allowed by law. 58.15 B. Manufacturers shall submit each proprietary 58.16 product for registration to the commissioner. Products within a 58.17 single series or model line, sharing distinct similarities in 58.18 design, materials, and capabilities, are allowed to be 58.19 registered under a single application, consistent with their 58.20 test protocols for the certification of other products within a 58.21 product series. Products outside of the series or model line 58.22 must be registered under separate applications. 58.23 C. Upon receipt of the application, the commissioner 58.24 shall, within 60 days: 58.25 (1) review the application and verify the 58.26 application for compliance with item A; 58.27 (2) if the application is not in compliance with 59.1 item A, return the application for resubmittal with the 59.2 requested information for full compliance with item A; and 59.3 (3) if the application is complete and the 59.4 commissioner determines that the product meets or exceeds all 59.5 applicable protocols, the commissioner shall place the product 59.6 on the list of registered treatment devices. The list of 59.7 registered treatment devices shall be maintained on the agency 59.8 Web site. 59.9 D. Registrations are valid for up to three years, 59.10 expiring on December 31 of the third year of registration, 59.11 unless the product is recalled for any reason, found to be 59.12 defective, or no longer available. 59.13 E. To renew technology registration, a manufacturer 59.14 shall: 59.15 (1) submit a request for renewal of product 59.16 registration at least 30 days before the current registration 59.17 expires, using the form or in the format prescribed by the 59.18 commissioner; 59.19 (2) submit the results of retesting if the 59.20 product has completed retesting according to the protocol 59.21 required for registration and a report from the testing entity 59.22 has been issued since initial registration or previous renewal. 59.23 Renewal must be based on the most recent test results; and 59.24 (3) provide an affidavit to the commissioner 59.25 certifying whether the product has changed over the previous 59.26 three years. If the product has changed, the affidavit must 59.27 include a full description of the changes and how the changed 60.1 product fulfills the requirements for initial registration. 60.2 F. As part of the product registration renewal, the 60.3 commissioner shall: 60.4 (1) request field assessment comments from local 60.5 units of government no later than October 31 for product 60.6 renewal; 60.7 (2) discuss with the Technical Advisory Panel of 60.8 the advisory committee established under part 7083.6000 any 60.9 field assessment information that impacts product registration 60.10 renewal; 60.11 (3) notify the manufacturer of any product to be 60.12 discussed with the Technical Advisory Panel, prior to discussion 60.13 with the Technical Advisory Panel, regarding the nature of 60.14 comments received; and 60.15 (4) renew, modify, or deny the product

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60.16 registration, based on information received during the renewal 60.17 process. 60.18 G. The commissioner shall maintain a readily 60.19 available list of proprietary treatment products meeting the 60.20 registration requirements established in this chapter. The 60.21 product registration is a condition of approval for use. 60.22 H. A manufacturer shall have readily accessible 60.23 information, specific to a product's registered use in 60.24 Minnesota, for designers, regulators, system owners, and other 60.25 interested parties about the product, including but not limited 60.26 to: 60.27 (1) a product manual; 61.1 (2) design instructions; 61.2 (3) installation instructions; 61.3 (4) information regarding operation and 61.4 maintenance; 61.5 (5) homeowner instructions; and 61.6 (6) a list of representatives and 61.7 manufacturer-certified service providers, if any.

DRAFT for Technical Advisory Panel Discussion

List of Registered Proprietary Subsurface Treatment System Products As Established in Minnesota Rules Chapter 7083 Standards for Subsurface Sewage Treatment Products July 24, 2008

For more information or additional copies of this document, contact: Minnesota Pollution Control Agency Municipal Division 520 North Lafayette Road North St. Paul, MN 55155 Phone: xx FAX: xx Web: http://www.pca.state.mn.us/programs/ists/productregistration.html For persons with disabilities, this document is available upon request in other formats. To submit a request, please call 1-xxx-xxx-xxxx (TDD/TTY 1-800-xxx-xxxx).

MPCA Publication xx 7-24-2008

List of Registered On-site Treatment Products - July 24, 2008

Table of Contents

SSEECCTTIIOONN 11 –– IInnttrroodduuccttiioonn aanndd OOvveerrvviieeww.................................................................................................................................................................... 33 CATEGORIES OF TREATMENT PRODUCT AND TREATMENT LEVELS....................................................................4

SSEECCTTIIOONN 22 –– LLiisstt ooff MMaannuuffaaccttuurreerrss ooff RReeggiisstteerreedd PPrroopprriieettaarryy OOnn--ssiittee PPrroodduuccttss ................................ 66 MANUFACTURERS OF REGISTERED PROPRIETARY ON-SITE TREATMENT PRODUCTS......................................7

SSEECCTTIIOONN 33 –– LLiisstt ooff RReeggiisstteerreedd OOnn--ssiittee TTrreeaattmmeenntt aanndd DDiissttrriibbuuttiioonn PPrroodduuccttss...................................... 88 REGISTERED ON-SITE TREATMENT PRODUCTS .................................................................................................9

SSEECCTTIIOONN 44 -- GGlloossssaarryy ooff TTeerrmmss ............................................................................................................................................................................................ 1100 NOTE: The presence of a product on this list does not constitute approval of marketing, advertising, or labeling practices employed by a manufacturer, nor is it an affirmation of manufacturer claims of product performance. Registration listing does not constitute endorsement of these products by the Minnesota Pollution Control Agency. Information obtained from the sources listed is the sole responsibility of the manufacturer or other provider. Links to external resources are provided as a public service, and do not imply endorsement by the Minnesota Pollution Control Agency.


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SECTION 1 – Introduction and Overview Minnesota Rules Chapter 7083 establishes a process for proprietary on-site product registration with requirements for testing, testing protocols, performance thresholds levels, and application processes. When the Minnesota Pollution Control Agency (MPCA or “the agency”) has determined that a product meets the registration requirements that are established in the rules, the product will be placed on the “List of Registered Treatment System Products” (Registered List). This document is the initial edition of the “Registered List”. Beginning in February 2010, manufacturers desiring to sell or distribute a new proprietary product for use in Minnesota must obtain MPCA registration of their product. After February 2010, product registration becomes a condition of approval for use of proprietary on-site products for Type I, Type II, Type III, and Type IV systems, and local units of governments may permit products that are on the “Registered List”. Non-registered products can be used for Type V systems, when allowed by the local unit of government. All sewage technologies must either have standards for use described in Minnesota Rules Chapter 7080 or agency Recommended Standards and Guidance (RS&G) before the local unit of government may permit them. Specific conditions for the use of each system technology or product are described in the RS&G documents relevant to the proprietary device. The most recently published edition of any RS&G can be obtained from the MPCA website at the following Internet address: http://www.pca.state.mn.us/programs/ists/productregistration.html Product models, rated capacities, treatment processes, treatment levels, and dimensional descriptions information are included in the tables of this document. In addition, terms used in this document, which need definition or clarification, are provided in Section 4 - Glossary of Terms. This information is provided to facilitate equipment selection and promote proper application of the technology. We welcome suggestions to improve this document. If you identify an error or have an idea about how to improve the usefulness of this document, feel free to contact staff at the Minnesota Pollution Control Agency, Municipal Division, at xxx- xxx-xxxx.

Overview Treatment components or distribution technologies, both proprietary and public domain, must be on the Agency’s “Registered List” or contained within Minnesota Rules Chapter 7080 before they may be permitted by the local unit of government (for all but Type V systems). Prior to placement on this list, the following must occur:

1. For all treatment components, the MPCA, with the assistance of the Technical Advisory Panel (TAP) and Advisory Committee (AC), may develop guidance in the form of Recommended Standards and Guidance (RS&G) for technologies. Each RS&G may include application, design, installation, operation, monitoring and maintenance, and performance expectation information.


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2. For proprietary treatment products, the manufacturer has submitted an application for registration containing the information required by M.R. Chapter 7083. For proprietary treatment products, this information shall verify that the performance of the proprietary treatment product was tested according to the appropriate testing protocol and include the results of the testing.

3. The department will verify the information on the application and register the product

if all the required information and data are included in the application.

Categories of Treatment Product and Treatment Levels This document registers the category and treatment level that is met by a treatment product. Applicable terms to help understand this listing include:

Category A treatment product – a treatment component designed to treat sewage typical of a residential source when septic tank effluent is anticipated to be equal to or less than Treatment Level C (See Table 1). Category B treatment product – a treatment component designed to treat high-strength sewage when septic tank effluent is anticipated to be greater than Treatment Level C. Examples of sources of high-strength sewage usually include restaurants, grocery stores, mini-marts, group homes, medical clinics, or residences. Total nitrogen and phosphorus treatment products – a treatment component designed to treat sewage to below a specific concentration for total nitrogen or total phosphorus. Treatment Level - one of five treatment levels (A, B, C, TN, and TP) noted in Table 1 and used in M.R. Chapter 7083 to:

(a) Identify treatment component performance demonstrated requirements specified in M.R. Chapter 7083.4030, and

(b) Match site conditions of vertical separation and soil type with treatment

components. Treatment levels used in M.R. Chapter 7083.4030 are not intended to be applied as field compliance standards. Their intended use is for establishing treatment product performance in a product testing setting under established protocols by qualified testing entities.


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Table 1. Treatment Levels

Level Parameters

CBOD5 (mg/L)

TSS (mg/L)

O&G (mg/L)

FC (#/100 ml)

Nutrient (mg/L)

A 15 15 ---- 1,000 ----

B 25 30 ---- 10,000 ----

C 125 80 20 ---- ----

TN ---- ---- ---- ---- 20

TP ---- ---- ---- ---- 2

Note: Values for Levels A and B are 30-day values (averages for CBOD5, TSS, and geometric mean for FC). All 30-day averages throughout the test period must meet these values in order to be registered at these levels. Values for Levels C, TN, and TP are derived from full test averages.


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SECTION 2 – List of Manufacturers of Registered Proprietary On-site Products

This section presents the current list of manufacturers who have submitted proprietary treatment and/or proprietary distribution products for MPCA review and were found to meet the registration requirements in M.R. Chapter 7083. This list notes the manufacturer, the manufacturer’s contact information, products’ names/models that have been reviewed and registered by MPCA, and product treatment processes or type. To determine what the specific products are registered for, see Section 3. ** If a certain manufacturer or product is not listed (either on this registered List or the Approved List), or if a listed manufacturer's specific model number is not included on the list (either this Registered List or the Approved List), the product IS NOT APPROVED for use in Minnesota for Type I, Type II, Type III, and Type IV systems and may not be permitted by the local unit of government.

Disclaimer The manufacturers’ contact information is presented here for information purposes only. Product registration and listing does not constitute departmental approval of marketing, advertising or labeling practices employed by a manufacturer, nor does it constitute an endorsement of these products, nor a preference among the manufacturers.


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Manufacturers of Registered Category A 1 Proprietary On-site Treatment Products

Manufacturer/Contact

Information Product Name/Model Rated Peak Hydraulic

Capacity (gpd) Treatment Process Treatment Level

Orenco Systems Inc. 814 Airway Avenue Sutherlin, Oregon 97479 Tel: (800) 348-9843 Fax: (541) 459-2884 E-mail: [email protected] Web: http://www.orenco.com Note – this could be a link to the company website?

AdvanTex® Wastewater Treatment System *AX20 (up to 4 units) *AX100 (up to 2 units) *System applications greater than 6 bedrooms and applications other than single family residential will require a design review by Orenco Systems, Inc.

AdvanTex AX20 with the Salcor 3G UV disinfection unit

500-2000 2500 - 3500 500

Attached Growth Multipass Packed Bed Filter Attached Growth Multipass Packed Bed Filter & UV Disinfection Treatment Sequence

See Section 3 or list here?

1 Category A Treatment Product – treatment components designed to treat sewage typical of a residential source THIS IS AN EXAMPLE - TO DISCUSS WITH TECHNICAL ADVISORY PANEL HOW THE LIST OF REGISTERED PRODUCTS COULD BE LAID OUT – ALL REGISTERED PRODUCTS WOULD BE LISTED HERE

List of Registered On-site Treatment Products – July 24, 2008

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SECTION 3 – List of Registered Proprietary Subsurface Treatment Products The following pages present the current list of registered treatment products by product type, under the categories and allowances provided in Chapter 7080. The list includes lists of the following:

Treatment products o Categories A, B, C, Total Nitrogen (TN) and Total Phosphorus (TP) o Treatment levels met as verified by test results using the protocol required in Chapter

7083

More probably needed here To locate the contact information for a product, find the product in the alphabetical list of manufacturers in Section 2. Unless this list contains specific model numbers, all models listed in Section 2 can be assumed to meet the applicable requirements for listing in this section.

If a certain product is not listed, or if a listed manufacturer's specific model number is not included on the list (either this Registered List or the Approved List), the product IS NOT APPROVED for use in Minnesota as a Type I, Type II, Type III or Type IV system and may not be permitted by the local unit of government.

Disclaimer

Product registration and listing does not constitute Agency approval of marketing, advertising, or labeling practices employed by a manufacturer, nor does it constitute an endorsement of these products, nor a preference among the manufacturers.


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Registered On-site Treatment Products

Category A

Proprietary Product Name / Model Treatment

Level A Treatment

Level B Treatment

Level C Total

Nitrogen Total

PhosphorusAdvanTex AX20 (up to 4 units) AdvanTex AX100 (up to 2 units)

AdvanTex AX20 with Salcor 3G UV


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SECTION 4 - Glossary of Terms Term Meaning / Description Some terms ……

Attached Growth A biological treatment process in which the microorganisms responsible for the conversion of the organic matter or other constituents to gases and cell tissues are attached to some inert medium such as rocks, slag, ceramic or plastic materials. Attached growth treatment processes are also known as fixed film processes.

BOD5-Biochemical Oxygen Demand

A test which measures the molecular oxygen used by microorganisms during a five day incubation period at a temperature of 200C (680F) for the biochemical degradation of organic material (CARBONACEOUS DEMAND), and the oxygen used by microorganisms to oxidize inorganic material such as sulfides and ferrous iron. It also may measure the amount of oxygen used to oxidize reduced forms of nitrogen such as ammonia and organic nitrogen (NITROGENOUS DEMAND) if the microorganisms capable of mediating the reaction are present in the sample.

CBOD5- Carbonaceous Biochemical Oxygen Demand

Same as the 5-day biochemical oxygen demand (BOD5) test, except that the NITROGENOUS DEMAND is prevented by addition of an inhibitory chemical to the sample, typically expressed in mg/L.

FC-Fecal Coliform (Bacteria)

Bacteria common to the digestive systems of warm-blooded animals that are cultured in standards tests. Counts of such organism are typically used to indicate potential contamination from sewage or to describe a level of needed disinfection. Generally expressed as colonies per 100ml.

O&G-oil and grease (formerly referred to as FOG)

A component of sewage typically originating from food stuffs (animal fats or vegetable oils) or consisting of compounds of alcohol or glycerol with fatty acids (soaps and lotions). Typically expressed in mg/L. High levels of oils and greases in the wastewater stream may interfere with wastewater treatment efficiency.

PBF- Packed Bed Filter Packed bed filters (PBF), are also known as fixed film media units and trickling filters. These wastewater treatment systems are packed with filter media, such as sand, gravel, peat, plastic foam, or geotextile, for the aerobic biological and physical treatment of wastewater constituents. Aeration is achieved by air diffusing through the open voids in the media with oxygen diffusing into the cell mass attached to the media. Some units use a small fan to assist aeration. PBFs come in different configurations and sizes, but incorporate the following common elements: a container for holding the filter medium, the filtering media, a distribution or dosing system for applying the wastewater to be treated to the filtering media, and an underdrain system for removing the treated wastewater. These units can be either intermittently dosed (single-pass) or recirculating (multipass). As the wastewater trickles downward over the media, the bacteria extract the organic matter and use the dissolved oxygen from the wastewater. Exposure of microorganisms to both air and food sources occurs in an unsaturated setting.

30-day Average The average of daily measurements over a calendar month calculated as the sum of all daily measurements taken during a calendar moth divided by the number of daily measurements taken during that month.

Public Domain Distribution Technologies: Drain Rock Distribution Media - Recommended Standards and Guidance Effective Date: __________

MPCA Publication # xxxx Page 1 of 11

Recommended Standards and Guidance for Performance, Application, Design, and Operation & Maintenance

Public Domain Distribution Technologies for Subsurface Sewage Treatment Systems Drain Rock Distribution Media July 24, 2008

For information or additional copies of this report contact: Minnesota Pollution Control Agency – Municipal Division Mailing address: xx Tel: xx FAX: xx Webpage: http://www. Brad Moore MPCA Commissioner For persons with disabilities, this document is available upon request in other formats. To submit a request, please call xxx MPCA Publication #



Contents Page Preface.................................................................................................................................3

Introduction........................................................................................................................5

1. Performance Standards..............................................................................................6 1.1. Listing ..............................................................................................................6 1.2. Performance Criteria........................................................................................6

2. Application Standards................................................................................................8 2.1. Permitting.........................................................................................................8 2.2 General Conditions ..........................................................................................8 2.3 Soil Conditions .................................................................................................. 2.4 Minimum Land Area / Drainfield Area Requirements ...................................... 2.5 Influent Wastewater Characteristics ................................................................8 2.6 Installation .......................................................................................................9

3. Design Standards ..........................................................Error! Bookmark not defined. 4. Operation and Maintenance Standards .................................................................10

4.1 General...........................................................Error! Bookmark not defined. 4.2 O&M activities include..................................................................................10 4.3 Observed Conditions / Actions ......................................................................11

Glossary of Terms……………….



Preface The recommended standards contained in this document have been developed for statewide application for subsurface sewage treatment systems (SSTS) in Minnesota. Regional differences may, however, result in application of this technology in a manner different than it is presented here. The local government unit has full authority in the application of this technology, consistent with Minnesota Rules Chapter 7080-7083 and locally adopted ordinances. If any provision of these recommended standards is inconsistent with local ordinances, regulations, policies, procedures, or practices, the local standards take precedence. Application of the recommended standards presented here is at the full discretion of the local governmental unit. Local jurisdictional application of these recommended standards may be: 1) Adopted as part of local rules, regulations or ordinances - When the recommended

standards, either as they are written or modified to more accurately reflect local conditions, are adopted as part of the local rules, their application is governed by local rule authority.

2) Referred to as technical guidance in the application of the technology - The

recommended standards, either as they are written or modified to more accurately reflect local conditions, may be used locally as technical guidance.

Application of these recommended standards may occur in a manner that combines these two approaches. How these recommended standards are applied at the local jurisdictional level remains at the discretion of the local unit of government. The recommended standards presented here are provided in typical rule language to assist those local jurisdictions where adoption in local ordinances is the preferred option. Other information and guidance is presented in text boxes with a modified font style to easily distinguish it from the recommended standards. Glossary of Terms: A common glossary of terms for all RS&Gs will be provided.



How this document is organized: Standards Section Explanation Performance How this technology is expected to perform

(function)

Application How this technology is to be applied. This section includes conditions that must be met prior to proceeding with design. Topics in this section describe the “approved” status of the technology, component listing requirements, permitting, installation, testing and inspection requirements, etc.

Design How this technology is to be designed and constructed (includes minimum standards that must be met to obtain a permit).

Operation and Maintenance How this technology is to be operated and maintained (includes responsibilities of various parties, recommended maintenance tasks and frequency, assurance measures, etc)

Appendices Design examples, figures and tables, specific applications, and design and installation issues.



Introduction Public domain drain rock distribution media, previously called drainfield rock, is addressed in these standards. The purpose of this document is to identify specifications for distribution media using drainfield rock and to identify quality control measures when drain rock is used in trenches, beds, at-grades, mounds, sand filters and other subsurface sewage treatment systems. Drain rock distribution media shall meet four primary criteria:

non-decaying and non-deteriorating and does not leach unacceptable chemicals when exposed to sewage and the soil;

provides adequate void space (for the passage and temporary storage of effluent) while maintaining a stable density throughout the life of the system;

supports the distribution pipe, provides for suitable effluent distribution, and presents an interface with the infiltrative surface—trench bottom and side-wall soil—for absorption of the wastewater; and,

maintains the integrity of the excavation, supporting the soil back-fill, cover and weight of equipment used in backfilling.



1. Performance Standards

1.1. Listing

1.1.1 There is no specific registration or listing requirement for public domain drain rock distribution media. Drain rock distribution media (also called drainfield rock) is a media readily available from gravel pits. The MPCA does not require the registration or listing of individual gravel pits that sell drain rock distribution media used in septic systems.

1.1.2 This document provides the standards for drain rock distribution media and

recommended quality control assurance that designers, installers, and local governmental units (LGU’s) use when drain rock is used as a distribution media in trenches, beds, at-grades, mounds, and other systems (such as sand filters).

1.2. Performance Criteria (Requirements from rule are in Bold.)

When drain rock distribution media is used, the rock shall have the following attributes:

1.2.1 Be clean, washed rock or crushed, screened rock of igneous or insoluble mineral origin, free from dust, silt or clay within the following limits: 1.2.1.1 Be between ¾-inch and 2-1/2 inches in size

1.2.1.2 Have no more than five percent (5%) by weight able to pass through a

¾- inch sieve

1.2.1.3 Have no more than one percent (1%) by weight able to pass through a No. 200 sieve

1.2.1.4 Have no more than five percent (5%) by weight greater than 2-1/2 inches

1.2.1.5 Have a hardness >3 (or 4) Mohs (limestone issue)

1.2.1.6 Have a solubility <5% in acid for particles <No. 8 (limestone issue)

1.2.1.7 Soft particles – clay balls or lumps?

1.2.2 Be non-decaying, non-deteriorating, insoluble, and durable that does not

break down and does not leach chemicals when exposed to sewage and the subsurface soil environment;

1.2.3 Provide liquid storage volume at least equal to the storage volume provided

within a twelve-inch layer of drainfield rock in a drainfield- rock-filled distribution system. The storage volume must be established by the



distribution medium, system design, and installation. This requirement may be met on a lineal-foot or on an overall system design basis;

1.2.4 The density of the media must be maintained for the life of the system;

1.2.5 Support the distribution pipe and provide suitable effluent distribution and

infiltration rate to the absorption area at the soil interface; and

1.2.6 Maintain the integrity of the trench or bed. The material used, by its nature and installation procedure, must withstand the physical forces of the soil sidewalls, soil backfill, and weight of equipment used in backfilling.

When drain rock distribution media is used in the construction of trenches, beds, at-grade and mounds, the following practices apply:

1.2.7 A durable, non-woven geotextile fabric must be used to cover the drain rock

media. The fabric must be of sufficient strength to undergo installation without rupture. The fabric must permit the passage of water without passage of overlying soil material into the rock medium (7080.2150 Subp. 3. F).

1.2.8 The top and bottom of the drain rock distribution media must be level along

the contour. Sidewalls must be as vertical as practical and not intentionally sloped.

1.2.9 The minimum depth of soil cover, including topsoil borrow, over the

distribution medium is 12 inches (7080.2150 Subp. 4. D).

1.2.10 The minimum depth of topsoil borrow over systems is 6 inches (7080.2150 Subp. 3. I ).

1.2.11 For trenches and beds, there needs to be a layer of at least six inches of drain

rock distribution media below the distribution pipe. 1.2.12 For trenches only, the bottom absorption area may be reduced by the

following percentages:

1.2.12.1 20 percent for loading 12 to 17 inches of sidewall absorption below the distribution pipe,

1.2.12.2 34 percent for loading 18 to 23 inches of sidewall absorption below the

distribution pipe,

1.2.12.3 40 percent for 24 inches of sidewall absorption below the distribution pipe.



2. Application Standards

2.1. Permitting

2.1.1 Permitting and installation of drainfield rock distribution media are subject to local and state requirements.

2.1.2 Permit Requirements. The local governmental unit construction permit must

specify, among other items normally required within the specific local governmental unit jurisdiction, the following items:

2.1.2.1 Name, mailing address, telephone number and email address. 2.1.2.2 Property Identification Number and address or other description of

property location. 2.1.2.3 Site Evaluation Report as described in Chapter 7080.1730.

2.1.2.4 Design Report as described in Chapter 7080.2430.

2.1.2.5 Management Plan as described in Chapter 7082.0600.

2.2 General Conditions Drain rock distribution media may be used:

2.2.1 In trenches, beds, at-grades, and mounds (Type I, Type II, Type III systems). 2.2.2 In conjunction with registered treatment systems, such as sand filters or aerobic

treatment units (Type IV and Type V systems), that may provide effluent quality sufficient for drain rock distribution media to be used on sites not otherwise suitable for Type I, Type II, or Type III systems.

2.3 Influent Wastewater Characteristics

2.3.1 Wastewater from residential sources must receive pre-treatment at least equal to that provided in a septic tank before discharge to the drain rock distribution media and into the soil or mound sand media as described in Chapter 7080.xxxx and Chapter 7081.xxxx.

2.3.2 Wastewater from non-residential sources, or high-strength wastewater from

residential sources must receive pre-treatment sufficient to lower the waste-strength to the level of that commonly found in domestic residential septic tank



effluent before discharge to a drain rock distribution media as described in Chapter 7080.xxxx and Chapter 7081.xxxx.

2.4 Installation and Quality Control When placing drain rock into an excavation, care must be taken to ensure the drain rock is of suitable quality and placed into the excavation in a fashion to maintain the infiltrative surface of the soil. The installer needs to verify the quality of the drain rock at the pit and/or when delivered to the site to ensure it meets specifications, especially the ‘fines’ requirement. Both the pit operator and installer can follow some simple Best Management Practices when loading and moving drain rock - so it won’t become contaminated with excess fines, silt and clay clods, and other undesirable materials. If the quality of the gravel washing process is poor, the silt particles remaining on the surface of the drain rock will likely washed when the system is loaded with effluent. This could result in a layer of fines (clay and silt) to accumulate on the infiltrative surface, thereby reducing it’s infiltrative capacity. Further, if the drain rock is ‘mishandled’ on site, it can become contaminated with grass, soil or other materials when the rock is moved with equipment. Add detail here – example - BMP’s for keeping rock clean at the pit, in transport and at site, etc. The following are suggested techniques that can be used to verify drain rock meets the required specifications: 2.4.1 Sieve analyses provided by gravel pit (certified meets requirements) 2.4.2 Collect samples and test at materials testing laboratory

2.4.3 Field test options (very preliminary)

1. Use a quart size mason jar. 1/4 fill with aggregate. Add a couple drops of calgon (I think any dish detergent will work). Fill with water. Shake (do not stir). Let settle for 30 min. If there is over 1/8" of fines on rock the rock is too dirty. Note the exact times etc. are what I am fuzzy on. This was a method I first heard when I was teaching in MA in 1995. Tom may be able to help as his group now teaches the Title 5 class in MA and they still may be using the same test. 2. Use a 5 gallon bucket. 1/4-1/2 fill with aggregate. Add water making sure to mix well. Let settle (I do not know how long). If after the correct time you can see the top of the aggregate the aggregate is "clean". If not it has too many fines. This method came from Berkowitz and Stienbeck here in NC. They may be able to supply details. Also check with Tom Konsler, Orange Co. HD.



Hope this helps a little. Once you have a method or two I'd like to know so I can finally get it right. Dave Lindbo

2.4.4 Visual observations. (With experience) Look for fines on rock surfaces, fines on

fingers, dustiness when loaded into truck at pit, etc… help here?

A few simple Best Management Practices (BMP’s) can be used to minimize contamination of rock with fines, dust, clods of silt and clay, and other undesirable materials. The BMP’s can be used by operators loading rock at the pit and by installers moving rock at the construction project. Best Management Practices at a gravel pit:

1) leave a bottom layer of rock at the pit when loading the truck; don’t try to scoop up all the rock because it will mix with the underlying soil and the load will become contaminated with soil and/or fines,

2) control dust at the pit so rock piles do not become contaminated with fines.

Best Management Practices at the construction site:

1) use an undisturbed area for temporary storage of rock, 2) take care not to mix any soil in with the rock when scooping it up, 3) carefully place the rock into the excavation; make sure the soils are the right

moisture content (not too wet); make sure the bottom is not smeared using the backhoe teeth; minimize walking in the excavation; place rock in the excavation by minimizing how far the rock drops from the bucket and into the excavation.

3. Operation and Maintenance Standards

3.1 O&M activities include (EXAMPLE)

3.1.1 Assuring that no surface water collects on the drainfield site. 3.1.2 Prohibiting any type of vehicular or livestock traffic over the drainfield area. 3.1.3 Maintaining a suitable, non-invasive shallow-rooted vegetative cover over the

drainfield site.



3.1.4 Observing the entire on-site sewage system at a frequency appropriate for the site conditions and the on-site sewage system. This may be done by the homeowner or other persons, as appropriate.

3.1.5 Maintaining a written chronological record of drainfield ponding level

observations, and operation and maintenance activities. If the system uses pressure distribution or other means of system dosing, the person monitoring the system needs to be aware of the impact of dose frequency on observed ponding levels.

3.1.6 Servicing all system components as needed, including product manufacturer's

requirements / recommendations for service.

3.2 Observed Conditions / Actions (list)

Listing Products – Oregon with links to information on right side of page below TAP - July 24, 2008

April 10, 2008 Mary K. Clark Government & Partner Relations Director Premier Tech Environment P.O. Box 226 Woodbury, VT 05681 Dear Ms. Clark: Thank you for your application for product registration of the Premier Tech Environment Ecoflo Peat Biofilter Wastewater Treatment System. The Department of Health, in accordance with Chapter 246-272A WAC, On-site Sewage Systems, has reviewed the information provided to us in your application for Category 1 treatment product listing. The Ecoflo Model STB-500 in this evaluation has a design rated capacity of 420 gallons per day (gpd), and Model STB-650 has a design rated capacity of 600 gpd. Our review indicates that the Ecoflo Models STB-500 and STB-650 meet the requirements set forth in WAC 246-272A-0120 for proprietary treatment product registration. Subject to this determination, the Ecoflo Models STB-500 and STB-650 will be placed on the List of Registered On-site treatment Products (Registered List) under the categories and allowances stated below.

Manufacturer/ Contact Information

Product Name / Model

Rated

Capacity (gpd)

Treatment Process

Premier Tech Environment 1, avenue Premier Riviere-du-Loup, Quebec, Canada G5R 6C1 Tel: (800) 632-6356 Fax: (418) 862-6642 E-mail: [email protected] Web: http://www.premiertechenv.com

Ecoflo Biofilter Wastewater Treatment System STB-500* STB-650* STB-650B* STB-650BR* *All models are closed bottom. Models STB-650B and STB-650BR have a concrete shell

420 600 600 600

Attached Growth Single-pass Packed Bed Filter

The Ecoflo Biofilter Wastewater Treatment System is considered a Category 1 (designed to treat residential sewage) treatment product in Washington State. The November 2005 ANSI/NSF Standard 40 Evaluation Report received for the Ecoflo Biofilter STB-500 showed a CBOD5 maximum 30-day average (arithmetic mean) of 2 mg/L and a TSS maximum 30-day average (arithmetic mean) of 2 mg/L for treated effluents. The Evaluation Report showed the STB-500 unit maximum 30-day geometric mean bacteriological reduction results for treated effluents were below Treatment Level B 1,000 fecal coliform/100 ml threshold value during the six month test period. For proprietary treatment product registration purposes, these results verifies the Ecoflo Biofilter STB-500 and STB-650 Wastewater Treatment System performance at Treatment Level B (15 mg/L CBOD5, 15 mg/L TSS, and 1,000 fecal coliform/100ml), and at Treatment Level C (25 mg/L CBOD5, 30 mg/L TSS, and 50,000 fecal coliform/100ml) for Category 1 systems. Please be advised that this registration expires December 31, 2008. Manufacturers desiring to continue product registration must obtain department renewal according to the requirements in WAC 246-272A-0120(5). If the product has completed retesting according to the protocol required for registration, renewal is based on the most recent test results. If the department finds the product has changed in any way that affects performance, it may not be renewed and must meet the requirements for initial registration. If you have any questions, please contact me at (360) 236-3041 or by email at [email protected]. Sincerely, John M. Eliasson Wastewater Management Specialist Cc: Environmental Health Directors

Sewage Program Coordinators

February 16, 2007 Brian Parker Infiltrator Systems Inc. 6 Business Park Road PO Box 768 Old Saybrook, CT 06475 Dear Mr. Parker: Thank you for your applications for product registration of the Infiltrator’s Traditional and Quick4 chamber products. The Department of Health, in accordance with Chapter 246-272A WAC, On-site Sewage Systems, has reviewed the information provided to us in your application for gravelless distribution product listing. This review has involved evaluations of Infiltrator Standard, High Capacity, Equalizer 36, Equalizer 24, Quick4 Standard, Quick4 High Capacity, Quick4 Equalizer 36, and Quick4 Equalizer 24. Based on the information contained in your application, the Traditional and Quick4 chamber products meet the requirements set forth in WAC 246-272A-0145 and -0150 for proprietary distribution product registration. Subject to this determination, the abovementioned Infiltrator Chamber products will be placed on the list of proprietary distribution products (Registered List) as stated below. Manufacturer/Contact Information Product Name/Model Type of Distribution

Product Infiltrator Systems, Inc. 6 Business Park Road PO Box 768 Old Saybrook, CT 06475 Tel: (800) 221-4436 Fax: (860) 577-7001 E-mail: [email protected] Web: http://www.infiltratorsystems.com

Infiltrator Chamber Leach Field System

Standard High Capacity Equalizer 36 Equalizer 24 Quick4 Standard Quick4 High Capacity Quick4 Equalizer 36 Quick4 Equalizer 24

Gravelless Chamber

Product / Model

Unit Size Outside

Dimensions W / L / H

(inches)

Void Space

per unit (cu. ft)

Void Space per linear

foot (cu. ft)

Infiltrative

Surface per unit

(sq. ft.)

Infiltrative

Surface per linear foot

(sq. ft.)

Infiltrator Chamber Leach Field System

Standard 34” x 75” x 12” 10.3 1.65 17.69 2.83 High Capacity 34” x 75” x 16” 16.3 2.61 17.69 2.83 Equalizer 36 22” x 100” x 13” 8.42 1.00 15.24 1.83 Equalizer 24 15” x 100” x 11” 4.45 0.54 10.41 1.25

Quick4 Standard 34” x 48” x 12” 5.82 1.46 11.32 2.83

Quick4 Standard MultiPort End Cap 34” x 16” x 12”

1.22 (average per

unit) NA 2.43 (average

per unit) NA

Quick4 HiCap 34” x 48” x 16” 8.30 2.08 11.32 2.83

Quick4 HiCap MultiPort End Cap 34” x 19” x 16”

1.93 (average per

unit) NA

3.00 (average per

unit) NA

Quick4 EQ36 22” x 48” x 12” 4.30 1.08 7.32 1.83

Quick4 EQ36 MultiPort End Cap 22” x 16” x 12”

0.74 (average per

unit) NA 1.65 (average

per unit) NA

Quick4 EQ24 16” x 48” x 11” 2.78 0.70 5.32 1.33

Quick4 EQ24 MultiPort End Cap 16” x 14” x 12”

0.52 (average per

unit) NA

1.20 (average per

unit) NA

Please be advised that this registration expires on December 31 of each year. Manufacturers desiring to continue product registration must obtain department renewal according to the requirements in WAC 246-272A-0145(5). If the department finds the product has changed in any way that affects performance, it may not be renewed and must meet the requirements for initial registration. If you have any questions, please contact me at (360) 236-3041 or by email at [email protected]. Sincerely, John M. Eliasson Wastewater Management Specialist Cc: Environmental Health Directors

Sewage Program Coordinators

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