Document Review Checklist

•  Every document that will be shared with anyone outside of DEQ staff must go through management review. This includes reports and PowerPoint presentations.

•  The Notice of Rulemaking and EQC Staff Report must also be reviewed and approved by the relevant Division Administrator.

•  Each required reviewer should add their name and the date when they complete their final review and approve the document for distribution.

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Table of Contents

DEQ Recommendation to the EQC  1

Introduction  2

Optional Additional Topic  3

Statement of need  4

Rules affected, authorities, supporting documents  5

Fee Analysis  6

Statement of fiscal and economic impact  7

Federal relationship  8

Land use  9

EQC Prior Involvement  10

Advisory Committee  11

Public Engagement  12

Public Hearing  13

Summary of Public Comments and DEQ Responses  14

Implementation  17

Five Year Review  18

Accessibility Information  19

DEQ Recommendation to the EQC

DEQ recommends that the Environmental Quality Commission adopt the proposed rules in Attachment A as part of Chapter 340 of the Oregon Administrative Rules.

Introduction

Short summary

DEQ proposes that the Oregon Environmental Quality Commission approve the proposed permanent rule relating to pathogen reduction standards in composting. The proposed rule is identical to, and would make permanent, the temporary rule amendment the EQC adopted on February 25, 2019.

Brief history

DEQ added anaerobic digester regulations to DEQ composting rules during the 2012 Conversion Technology Rulemaking. These regulations included OAR 340-096-0140 (Special Rules Pertaining to Composting: Pathogen Reduction). OAR 340-096-0140 established methods for pathogen reduction, as well as testing schedules and pathogen limits. DEQ intended these provisions to ensure that facilities are designed and operated in a manner that protects public health and the environment and that compost and digestate available to the public have met pathogen reduction limits.

In the fall of 2018, DEQ was reviewing an application for a permit modification to the Port of Tillamook Bay (POTB)’s anaerobic digester permit. DEQ identified an inconsistency in the pathogen reduction requirements of OAR 340-096-0140. In particular, OAR 340-096-0140 required different pathogen reduction requirements for digestate based on whether or not the generating digester was considered an “agricultural operation,” as defined by ORS 467.120(2)(a). As a result, digestate produced by a digester on an agricultural operation (e.g., a farm) did not have to meet a specified pathogen reduction limit. However, digestate produced by an anaerobic digester not on a farm had to meet the limit set forth in OAR 340-096-0140, despite the fact that digestate from all anaerobic digesters in Oregon is applied to farm soil for crop production. EPA research indicates soil application of digestate completes the pathogen reduction process and renders the digestate safe for human health and the environment as long as it is applied at agronomic application rates.

On February 25, 2019, EQC adopted a temporary rule amendment to ensure that testing requirements for digestate applied to land as a fertilizer (e.g., “land applied”) were the same regardless of whether the anaerobic digester producing the digestate qualifies as an “agricultural operation.” The temporary rule amendment exempts digestate from having to meet the pathogen limits of OAR 340-096-0140 if the digestate is land applied at agronomic rates in compliance with federal requirements for biosolids under 40 C.F.R. §503.32(b)(5). These federal biosolids requirements are comprised of site restrictions on the application of digestate to ensure that biological processes within soil, and exposure to sun and weather, further reduce pathogens in digestate to safe levels for public health and the environment. They restrict farming practices, such as animal grazing and public access, on land where the digestate is applied for a period of time to allow further pathogen reduction. Compliance with these federal site restrictions, coupled with land application at agronomic rates, ensures that pathogen reduction for digestate occurs at safe levels that are environmentally protective.

The temporary rule will expire on August 24, 2019. The proposed rule would make the temporary rule amendment permanent.

Regulated parties

The proposed rule would affect digestate produced by anaerobic digesters that are not considered “agricultural operations” (as the term is defined by ORS 467.120(2)(a)). These affected anaerobic digesters would not have to meet the limit and testing requirements in OAR 340-096-0140 when producing digestate that is land applied at agronomic application rates and consistent with site restrictions in 40 C.F.R. §503.32(b)(5).

Outreach efforts

To collect information to improve the rule and give the public and affected parties an opportunity to comment, DEQ made the following outreach efforts:

•  DEQ held a public comment period on the temporary rule amendment, before EQC adopted it, from February 7, 2019, to February 14, 2019. DEQ changed the proposed temporary rule amendment in response to comments.

•  DEQ convened a fiscal advisory committee to review DEQ’s estimate of the fiscal impact of the proposed rules. The committee met on April 1, 2019. This meeting was open to the public to attend or to listen to by phone.

•  DEQ sent updates about the rulemaking process through a GovDelivery email list.

•  DEQ published a public notice requesting comment on the rule. The public notice included draft rule language and invited comment on any part of the rule.

•  DEQ accepted public comments on the permanent rule through the DEQ website and other formats from April 15, 2019, to May 17, 2019.

•  DEQ will also hold a public hearing on May 15, 2019.

REVIEWERS do not edit or modify this section

Management reviewed and edited this section. It was then published with the Public Notice. Do not modify it except to correct typographical errors.

Statement of need

What need would the proposed rule address?

The proposed rule would address the need for a consistent approach to pathogen reduction standards for digestate applied to soil on farms.

Before the temporary rule adoption, OAR 340-096-0140 required all digestate produced by anaerobic digesters to meet certain pathogen reduction standards. However, agricultural operations producing digestate only for on-farm use were not subject to this rule. This created an inconsistency: digestate produced for on-farm use by anaerobic digesters not considered agricultural operations had to meet pathogen reduction standards that digestate produced for on-farm use by agricultural operations were exempt from. These pathogen reduction requirements were modeled on EPA’s Biosolids 503 regulations for Class A biosolids and were intended for composting operations. The goal of Class A processes is to reduce the level of pathogens below the level at which they may cause disease when exposed to the public. Class A biosolids may be used without site restrictions, and must be tested to show that the microbiological requirements are met. As a result, in producing digestate for on-farm use, anaerobic digesters not located on agricultural operations, in order to meet pathogen reduction limits, would need to operate the digester for a longer period of time or at hotter temperatures, or both, than a digester located at an agricultural operation.

In February, the EQC adopted a temporary rule amendment to correct this inconsistency. The temporary rule ensured that digestate would be exempt from the pathogen reduction limits, regardless of whether the digester is considered an agricultural operation or not, if the digestate is applied to land at agronomic rates and consistent with site restrictions set forth in 40 C.F.R. §503.32(b)(5). These site restrictions are taken from federal Biosolids 503 regulations for Class B biosolids, which do not have to meet Class A biosolids pathogen reduction requirements but are restricted to application to the land as fertilizer. These site restrictions include, for instance, restricting for a period of time public access and certain farming practices (such as animal grazing) on land to which Class B biosolids have been applied. Without a permanent rule change, however, the temporary rule will expire in August 2019.

How would the proposed rule address the need?

The proposed rule addresses the need described above by ensuring that digestate is exempt from pathogen reduction testing limits when it is applied to soil at agronomic application rates and under federal site restrictions, regardless of whether or not the digester is located on an agricultural operation.

If the proposed rule is not adopted, the temporary rule would expire in August 2019 and the inconsistent application of pathogen reduction testing limits, to digestate produced by agricultural operations for on-farm use and digestate produced by digesters not considered agricultural operations for on-farm use, would be reinstated.

How will DEQ know the rule addressed the need?

There is currently one DEQ permitted anaerobic digester this rule change directly affects. DEQ expects another to be directly affected in spring of 2020. DEQ will work with the Oregon Department of Agriculture in monitoring these anaerobic digesters, along with anaerobic digesters located on agricultural operations, to ensure that pathogen reduction standards of their digestate is consistent. DEQ will know the need was met if digester operators can operate safely without being subject to inconsistent or unnecessary pathogen reduction requirements.

REVIEWERS do not edit or modify this section

Management reviewed and edited this section. It was then published with the Public Notice. Do not modify it except to correct typographical errors.

Rules affected, authorities, supporting documents

Lead division

Land Quality

Program or activity

Materials Management

Chapter 340 action

Amend – OAR

340-096-0140 (permanent)

Statutory authority – ORS

Statutes Implemented – ORS

Documents relied on for rulemaking

REVIEWERS do not edit or modify this section

Management reviewed and edited this section. It was then published with the Public Notice. Do not modify it except to correct typographical errors.

Fee Analysis

This rulemaking does not involve fees.

REVIEWERS do not edit or modify this section

Management reviewed and edited this section. It was then published with the Public Notice. Do not modify it except to correct typographical errors.

Statement of fiscal and economic impact

Fiscal and Economic Impact

This rulemaking’s purpose is to permanently adopt the temporary rule amendments to the compost rules that the Environmental Quality Commission adopted on February 25, 2019. Therefore, adopting the proposed rule amendments will not have any fiscal impact different from, or in addition to, the impact the temporary rule amendments imposed.

The temporary rule amendments corrected an inconsistency in the treatment of digestate under OAR 340-096-0140. The temporary rule amendments corrected this inconsistency and clarified that digestate, when applied to land as a fertilizer (e.g., “land applied”) at agronomic rates in compliance with federal biosolids requirements as set forth in 40 C.F.R. §503.32(b)(5), does not need to meet pathogen limits for fecal coliform, regardless of whether the anaerobic digester is an agricultural operation or not. (Land application of digestate at agronomic rates and in compliance with federal biosolids site restrictions assure that pathogen reduction is to safe levels that are environmentally protective.) The temporary rule amendments are effective from February 26, 2019 to August 24, 2019.

When compared to the version of OAR 340-096-0140 in effect before February 26, 2019, the temporary and proposed permanent rule amendments could have a positive fiscal impact on DEQ-permitted anaerobic digesters that do not meet the standards for being considered an agricultural operation. Such anaerobic digesters, when producing digestate for land application, would not have to operate their anaerobic digestion technologies either for as long of a time, or at as high of a temperature, or both, in order to meet the previously more stringent pathogen reduction requirements. This may result in a savings in energy and labor costs.

The remainder of this fiscal impact statement will further describe the impact that adopting the proposed changes could cause, when compared to the version of OAR 340-096-0140 that was in effect before February 26, 2019.

Statement of Cost of Compliance  

State and federal agencies

DEQ anticipates no direct or indirect impact on state or federal agencies.

DEQ

Direct Impacts

There are no anticipated direct impacts to DEQ.

Indirect Impacts

There are no anticipated indirect impacts to DEQ.

Local governments

Direct Impacts

There are no anticipated direct impacts to local governments.

Indirect Impacts

There are no anticipated indirect impacts to local governments.

Public

Direct Impacts

DEQ does not anticipate direct impacts to members of the public because they are not subject to the rule.

Indirect Impacts

There are no anticipated indirect impacts to the public.

Large businesses - businesses with more than 50 employees

Direct Impacts

DEQ anticipates a direct impact to one large business in the future. The rule amendment will directly affect Shell New Energies, a DEQ-permitted anaerobic digester in Oregon. While Shell New Energies has fewer than ten employees, it is a subsidiary of Shell Oil, a national company.

The direct impact on Shell New Energies would likely be a decrease in facility operational costs, if the facility starts to process manure, as planned in the future. For digestate that will be land applied at agronomic rates in compliance with federal biosolids site restrictions, the digester would not have to process its feedstock (e.g., the material that is used in anaerobic digestion) for either as long or at as high of a temperature, or both, as would be required in order to achieve the pathogen reduction limits set forth in OAR 340-096-0140.

Indirect Impacts

There are no indirect impacts to large businesses.

Small businesses – businesses with 50 or fewer employees

Direct Impacts  

DEQ anticipates a direct impact to the anaerobic digester of one small business, the Port of Tillamook Bay. The rule amendment would likely prevent an increase in facility operational costs because the anaerobic digester would potentially not need to process the feedstock for either as long, or at an increased temperature, or both, to achieve pathogen reduction limits.

Indirect Impacts

There are no indirect impacts to small businesses.

a. Estimated number of small businesses and types of businesses and industries with small businesses subject to proposed rule.

The proposed rule amendment will affect the anaerobic digester of at least one small business, the Port of Tillamook Bay.

b. Projected reporting, recordkeeping and other administrative activities, including costs of professional services, required for small businesses to comply with the proposed rule.

The proposed rule change will not require any additional administrative activities by the Port of Tillamook Bay’s anaerobic digester.

c. Projected equipment, supplies, labor and increased administration required for small businesses to comply with the proposed rule.

The proposed amendments will not require any business to use additional resources.

d. Describe how DEQ involved small businesses in developing this proposed rule.

DEQ spoke with the two affected anaerobic digester operators about the amendment. DEQ will also conduct a public comment period during which any person will be able to comment about the rule changes.

Documents relied on for fiscal and economic impact

DEQ did not use any documents to determine fiscal impact. DEQ discussed the fiscal impact of this rule with affected anaerobic digester facility operators in developing its staff report for the temporary rule.

Advisory committee fiscal review

DEQ appointed an advisory committee.

As ORS 183.33 requires, DEQ asked for the committee’s recommendations on:

•  Whether the proposed rules would have a fiscal impact,

•  The extent of the impact, and

•  Whether the proposed rules would have a significant adverse impact on small businesses; if so, then how DEQ could comply with ORS 183.540 reduce that impact.

The committee reviewed the draft fiscal and economic impact statement. The committee agreed with DEQ that the proposed rule, when compared to the version of OAR 340-096-0140 in effect before the temporary rule’s adoption, would likely result in a decrease in the cost of compliance for anaerobic digesters not considered agricultural operations. The committee reviewed and discussed the fiscal impact statement and determined that the proposed rule would not have a significant adverse impact on small businesses in Oregon.

Advisory committee members’ comments are summarized in written meeting minutes posted on the advisory committee web page here: Composting Pathogen Reduction 2019.

Housing cost

As ORS 183.534 requires, DEQ evaluated whether the proposed rules would have an effect on the development cost of a 6,000-square-foot parcel and construction of a 1,200-square-foot detached, single-family dwelling on that parcel. DEQ determined the proposed rules would have no effect on the development costs because the DEQ Solid Waste Composting rules only affect DEQ-permitted composting facilities.

REVIEWERS do not edit or modify this section

Management reviewed and edited this section. It was then published with the Public Notice. Do not modify it except to correct typographical errors.

Federal relationship

ORS 183.332, 468A.327 and OAR 340-011-0029 require DEQ to attempt to adopt rules that correspond with existing equivalent federal laws and rules unless there are reasons not to do so.

The proposed rules are not different from or in addition to federal requirements.

REVIEWERS do not edit or modify this section

Management reviewed and edited this section. It was then published with the Public Notice. Do not modify it except to correct typographical errors.

Land use

Land-use considerations

In adopting new or amended rules, ORS 197.180 and OAR 340-018-0070 require DEQ to determine whether the proposed rules significantly affect land use. If so, DEQ must explain how the proposed rules comply with state wide land-use planning goals and local acknowledged comprehensive plans.

Under OAR 660-030-0005 and OAR 340 Division 18, DEQ considers that rules affect land use if:

•  The statewide land use planning goals specifically refer to the rule or program, or

•  The rule or program is reasonably expected to have significant effects on:

◦  Resources, objectives or areas identified in the statewide planning goals, or

◦  Present or future land uses identified in acknowledged comprehensive plans

DEQ determined whether the proposed rules involve programs or actions that affect land use by reviewing its Statewide Agency Coordination plan. The plan describes the programs that DEQ determined significantly affect land use. DEQ considers that its programs specifically relate to the following statewide goals:

Statewide goals also specifically reference the following DEQ programs:

•  Nonpoint source discharge water quality program – Goal 16

•  Water quality and sewage disposal systems – Goal 16

•  Water quality permits and oil spill regulations – Goal 19

Determination

DEQ determined that the rule being amended in this rulemaking affects programs or activities that the DEQ State Agency Coordination Program considers a land-use program.

DEQ’s statewide goal compliance and local plan compatibility procedures adequately cover the proposed rule. Under OAR 340-018-0050(2)(a), ensuring compatibility with acknowledged comprehensive plans may be accomplished through a Land Use Compatibility Statement. The proposed rule change to OAR 340-096-0140 would affect pathogen reduction standards that a composting facility must meet for its compost or digestate. Under OAR 340-096-0080, a Land Use Compatibility Statement is required to obtain a composting facility permit.

REVIEWERS do not edit or modify this section

Management reviewed and edited this section. It was then published with the Public Notice. Do not modify it except to correct typographical errors.

EQC Prior Involvement

DEQ initially presented the proposed temporary rule amendments to the EQC at its January 25, 2019, meeting. At the EQC’s request, DEQ held a public comment period on the temporary rule. Following the public comment period and revisions to the proposed temporary rule, the EQC approved the temporary rule at a second meeting on February 25, 2019.

REVIEWERS do not edit or modify this section

Management reviewed and edited this section. It was then published with the Public Notice. Do not modify it except to correct typographical errors.

Advisory Committee

Background

DEQ convened the Composting Pathogen Reduction 2019 Advisory Committee. The committee included representatives from an agricultural operation that operates an anaerobic digester, water interests from Tillamook County, where an off-farm anaerobic digester is expected to become operational soon, and dairy farmers. The committee met once.

The committee’s web page is located at: Composting Pathogen Reduction 2019.

The committee members were:

Meeting notifications

To notify people about the advisory committee’s activities, DEQ:

•  Sent GovDelivery bulletins, a free e-mail subscription service, to the following lists:

◦   Rulemaking

◦   Composting

•  Added advisory committee announcements to DEQ’s calendar of public meetings at DEQ Calendar.

•  On April 15, 2019, DEQ provided notice of meetings and links to committee information through postings on Facebook and Twitter.

Committee discussions

Beyond the recommendations described under the Statement of Fiscal and Economic Impact section above, the committee appreciated DEQ’s explanation for the reasons for the rulemaking and reviewed the proposed rule language. The committee did not have additional comments for DEQ.

REVIEWERS do not edit or modify this section

Management reviewed and edited this section. It was then published with the Public Notice. Do not modify it except to correct typographical errors.

Public Engagement

Public notice

DEQ provided notice of the proposed rulemaking and rulemaking hearing on April 15, 2019, by:

•  Filing notice with the Oregon Secretary of State for publication in the May 2019 Oregon Bulletin;

•  Posting the Notice, Invitation to Comment and Draft Rules on the web page for this rulemaking, located at: Composting rulemaking

•  Emailing 11,438 interested parties on the following DEQ lists through GovDelivery:

◦  Rulemaking

◦  Composting

•  Emailing the following key legislators required under ORS 183.335:

◦  Senator Michael Dembrow, Chair, Senate Committee on Environment and Natural ResourcesSenator Michael Dembrow, Chair, Senate Committee on Environment and Natural Resources

◦  Senator Alan Olsen, Vice-chair, Senate Committee on Environment and Natural Resources

◦  Representative Ken Helm, Chair, House Committee on Energy and EnvironmentRepresentative Ken Helm, Chair, House Committee on Energy and Environment

◦  

◦  Representative Sheri Schouten, Vice-chair, House Committee on Energy and Environment

•  Emailing advisory committee members,

•  Postings on Twitter and Facebook

•  Posting on the DEQ event calendar: DEQ Calendar

REVIEWERS do not edit or modify this section

Management reviewed and edited this section. It was then published with the Public Notice. Do not modify it except to correct typographical errors.

Public Hearing

New section – not copied from Notice of Rulemaking

DEQ held one public hearing. DEQ received no comments at the hearing. Later sections of this document include a summary of the XX comments received during the open public comment period, DEQ’s responses, and a list of the commenters. Original comments are on file with DEQ.

Presiding Officers’ Record

Hearing 1

Presiding Officer:

The presiding officer convened the hearing, summarized procedures for the hearing, and explained that DEQ was recording the hearing. The presiding officer asked people who wanted to present verbal comments to sign the registration list, or if attending by phone, to indicate their intent to present comments. The presiding officer advised all attending parties interested in receiving future information about the rulemaking to sign up for GovDelivery email notices.

As Oregon Administrative Rule 137-001-0030 requires, the presiding officer summarized the content of the rulemaking notice.

No person presented any oral testimony or written comments.

Summary of Public Comments and DEQ Responses

Public comment period

DEQ accepted public comment on the proposed rulemaking from April 15, 2019 until 4 p.m. on May 17, 2019.

DEQ did not change the proposed rules in response to comments.

Comments received by close of public comment period

DEQ received comments from two individuals during the public comment period. The table below lists the persons who submitted public comments about the proposed rules by the deadline. Original comments are on file with DEQ. Some comments related to the permit for the Port of Tillamook Bay digester and to the basis for the temporary rule amendment to OAR 340-096-0140 that was adopted in February 2019. For the purposes of this proposed permanent rulemaking, DEQ is providing responses only to comments related to the proposed permanent rulemaking. Original comments are included in full after the staff report.

Comment 1: Clarification on close of public comment period

I noticed on DEQ’s website that the comment period on the Composting Pathogeny Reduction 2019 Rulemaking closes at 4 pm on May 17. However, there is an update published on May 7 stating that the comment period has been extended. Can you confirm whether May 17 is the original deadline or the new, extended deadline.

I see that May 17 appears to be the original deadline (according to the April 15 NOPR). Can you confirm what the new, extended deadline is and update the website comment form to include that date?

Response

The public comment period was not extended and closed on May 17, 2019 at 4 p.m. The reference to a deadline extension on the DEQ website was posted in error; upon receipt of this comment, DEQ corrected the error on the website on May 15^th. Since this comment was a technical question about the public comment period rather than a comment on the proposed rule change, DEQ also provided the correct deadline to the commentator on the day the comment was received.

Comment 2: Types of feedstock that may be permitted under proposed rule change

While choosing to mention that “digestate from all anaerobic digesters in Oregon is applied to farm soil for crop production,” DEQ chooses not to share that most anaerobic digesters in the state are actually sewage sludge digesters at municipal wastewater treatment plants that must follow the full range of regulations in 40 C.F.R. §503 or its equivalent elsewhere in OAR 340. In this rulemaking, DEQ is really asking EQC members to create a new class of digesters that is not on a farm, not required to process any manure, and allowed [to] accept unlimited amounts of municipal organic waste, but required to follow only a single fragment of biosolids regulations—§503.32(b)(5)—while being exempted from the rest.

The emergency rulemaking asked EQC members to allow—as a matter of urgent public policy—the addition of unlimited amounts of Type 3 feedstocks to permitted digesters, but without the OAR-required testing requirements. Here we want to remind EQC members that according to OAR 340-093-0030(43)(c), “Type 3 feedstocks include dead animals, meat and source-separated mixed food waste and industrially produced non-vegetative food waste. They also include other materials the department determines pose a low level of risk from hazardous substances and a higher level of risk from physical contaminants and human pathogens compared to type 1 and 2 feedstocks.”

In contrast to the temporary rule justification, the permanent rulemaking notice does not mention feedstock types at all, even though the feedstocks received by a facility are key to its regulation under OAR. Instead, DEQ chooses to emphasize treatment of on-farm dairy digesters, saying “digestate produced by a digester on an agricultural operation (e.g., a farm) did not have to meet a specified pathogen reduction limit. However, digestate produced by an anaerobic digester not on a farm had to meet the limit set forth in OAR 340-096-0140”. DEQ continues to ignore that such on‐farm digesters have always been required to operate primarily on manure (no less than 85%) and operate within other agricultural CAFO permitting, location, and operation restrictions. There is no similar requirement to actually process manure at any percentage. The permanent rule even allows disposal of effluent under a “nutrient management plan”—not on a permitted dairy farm and not covered by any land application or discharge permit at all.

Response

Although the proposed rule change would exempt digestate that is applied to land under certain conditions from meeting the pathogen reduction limits of OAR 340-096-0140(2), the amended rule would continue to ensure that such digestate is applied in a manner protective of human health and the environment in several ways. All digestate must still be tested for pathogens. All composting facilities, with the exception of agricultural operations producing composted material and digestate only for on-farm use, must continue to document and a pathogen reduction plan that addresses requirements of the Code of Federal Regulations, 40 CFR Part 503. All applicable composting facilities must also receive DEQ’s written approval regarding any use of liquid digestate other than discharge to an approved wastewater treatment system or discharge under a water quality permit issued under ORS 468B.050. These requirements are set forth in OAR 340-096-0140(3), (4), (5) and (6), and are not altered by the proposed rule change. Under the proposed rule change, DEQ would also retain the authority to require land-applied digestate to meet the pathogen limits of OAR 340-096-0140(2) where DEQ determines such compliance is necessary to protect human health or the environment.

Regarding the types of feedstocks allowed, the proposed rule change would not alter the extent of DEQ’s authority to review and approve the types and volumes of feedstocks a composting facility may receive. Such authority includes DEQ’s authority to screen composting facilities under OAR 340-096-0080, and to review and approve—or require revision of—facility operations plans under OAR 340-096-0090. DEQ may also hold a public hearing before the issuance of a permit.

The proposed rule change would not remove any requirements for digesters subject to OAR 340-096-0140 to process manure at a particular percentage, as no such requirements have existed under OAR 340-096-0140. An on-farm digester operating in conjunction with a Confirmed Animal Feeding Operation permitted by the Oregon Department of Agriculture is exempt from the screening requirements if it complies with a composting facility management plan approved by ODA that meets the requirements of OAR 340-096-0090 (Operations Plan Approval) and for which ODA is providing oversight under an agreement with DEQ. However, an on-farm digester that seeks to operate on less than 85% manure could submit to the screening requirements under OAR 340-096-0080 and submit an operations plan to DEQ, if required under OAR 340-096-0090. A number of on-farm digesters are operating under a DEQ composting permit in this manner.

Comment 3: Incorporation of federal biosolids requirements

[…]

Response

The purpose of the proposed rule change is to change the application of pathogen reduction limits in OAR 340-096-0140(2) to digestate, depending on how that digestate is used. Title 40 of the Code of Federal Regulations, Part 503 was developed to protect public health and the environment from any reasonably anticipated adverse effects of certain pollutants that might be present in sewage sludge biosolids. Biosolids are the nutrient-rich organic solids that are derived from the treatment of domestic wastewater at municipal wastewater facilities. The pathogen reduction standards for biosolids found under these federal rules can serve as a good model for pathogen reduction standards for digestate, because biosolids typically contain a high count of fecal coliforms, enteric bacteria that can be used as indicators of the likelihood of the presence of bacterial pathogens. Manure, which can be used as feedstock for digestate, also contains a very high fecal coliform count. Other common kinds of Type 3 feedstock, such as food waste, fish processing waste and fats, oils and grease, generally contain a much lower fecal coliform count.

DEQ previously used the Part 503 pathogen reduction standards as a model for digestate pathogen reduction standards during the 2012 Conversion Technology Rulemaking. In particular, the pathogen reduction standards of OAR 340-096-0140(2) reproduced the analytical standards for Class A biosolids set forth in 40 C.F.R. 503.32(a). However, federal biosolids pathogen reduction standards recognize Class B biosolids, which do not have to meet the pathogen reduction standards of Class A biosolids but are restricted in their usage according to site restrictions set forth in 40 C.F.R. §503.32(b)(5). The proposed rule change to OAR 340-096-0140 would more closely track, for digestate, the differing federal treatment of pathogen requirements for Class A and Class B biosolids. The proposed rule change would otherwise leave intact the requirements to document and implement a pathogen reduction plan that addresses the requirements of Part 503 Rules; test solid and liquid digestate for pathogen reduction; and other requirements as set forth in sections (3) through (7) of OAR 340-096-0140(3). The proposed rule change would also allow DEQ to require compliance with the pathogen reduction standards of OAR 340-096-0140(2) for all digestate, including digestate applied to soil, if DEQ determines that such compliance is necessary to protect human health or the environment.

As the comment notes, the Part 503 Rules also address the potential for non-pathogen pollutants in biosolids. The issue of non-pathogen pollutants is beyond the scope of this rulemaking, but DEQ may address non-pathogen pollutants in finished compost materials in a subsequent rulemaking. At this time, DEQ intends to address the potential for non-pathogen pollutants through existing composting rules, such as rules on compost facility performance standards, screening, operations plan approval and registration as set forth elsewhere in OAR Chapter 340, Division 96; as well as other existing solid waste and hazardous waste rules. These other existing rules would not be altered by the proposed rule change.

Comment 4: Survival Times of Pathogens in Soil

Response

As Table 2-3 of Control of Pathogens and Vector Attraction in Sewage Sludge shows, anaerobic digestion is a treatment that significantly reduces the number of pathogens that would otherwise exist in sewage sludge:

The EPA guidance states, “Studies of anaerobic or aerobic digestion of sludges have shown that the corresponding reduction in the pathogen population will be significant and sufficient so that environmental attenuation can reduce pathogen levels to below detection limit within the time period of site restrictions […].” See https://www.epa.gov/sites/production/files/2015-04/documents/control_of_pathogens_and_vector_attraction_in_sewage_sludge_july_2003.pdf (page 15). Anaerobic digestion is recognized as a Process to Significantly Reduce Pathogens under Appendix B to 40 C.F.R. Part 503.

Comment 5: POTB permit

Response

This comment does not directly address the proposed permanent rulemaking. For the purposes of this proposed permanent rulemaking, DEQ is providing responses only on comments related to the proposed permanent rulemaking. DEQ notes that permitted facilities are required to comply with all applicable federal, state and local laws or regulations regardless of whether such laws and regulations are listed in the permit.

Comment 6: Basis for Temporary Rule

Response

This comment relates to the basis for the temporary rule, not to the proposed permanent rulemaking. For the purposes of this proposed permanent rulemaking, DEQ is providing responses only on comments related to the proposed permanent rulemaking.

Implementation

Do not copy from Notice of Rulemaking.

Notification

The proposed rules would become effective upon filing on approximately DATE mmm, dd, yyyy. DEQ would notify affected parties by:

•  

•  

•  Describe Notification (PARTIES AND METHOD USED TO PROVIDE NOTICE)

Compliance and enforcement

Affected parties -Text

DEQ staff - Text

Measuring, sampling, monitoring and reporting

Affected parties - Text

DEQ staff - Text

Systems

Website - Text

Database - Text

Invoicing - Text

Training

Affected parties - Text

DEQ staff - Text

Five Year Review

Leave blank – rules coordinator will complete this section

ORS 183.405

Requirement  

Oregon law requires DEQ to review new rules within five years after EQC adopts them. The law also exempts some rules from review. DEQ determined whether the rules described in this report are subject to the five-year review. DEQ based its analysis on the law in effect when EQC adopted these rules.

Exemption from five-year rule review

DELETE THIS PARAGRAPH IF NO RULES ARE EXEMPT FROM REVIEW:

The Administrative Procedures Act exempts CHOOSE ONE: SOME … ALL of the proposed rules from the five-year review because the proposed rules would:

DELETE ANY THAT DON’T APPLY:

Amend or repeal an existing rule. ORS 183.405(4).

Implement a court order or a civil proceeding settlement. ORS 183.405(5)(a).

Adopt a federal law or rule by reference. ORS 183.405((5)(b).

Implement legislatively approved fee changes. ORS 183.405(5)(c).

Correct errors or omissions in the existing rules. ORS 183.405(d).

DELETE THIS PARAGRAPH IF ANY OF THE RULES ARE EXEMPT FROM REVIEW:

None of these proposed rules are exempt from the five-year review under ORS 183.405(4) and 183.405 (5) of the Administrative Procedures Act.

Five-year rule review required

No later than DATE FIVE YEARS FROM ADOPTION. DEQ will review the newly adopted rules for which ORS 183.405 (1) requires review to determine whether:

•  The rule has had the intended effect

•  The anticipated fiscal impact of the rule was underestimated or overestimated

•  Subsequent changes in the law require that the rule be repealed or amended

•  There is continued need for the rule.

DEQ will use “available information” to comply with the review requirement allowed under ORS 183.405 (2).

DEQ will provide the five-year rule review report to the advisory committee to comply with ORS 183.405 (3).

Accessibility Information

You may review copies of all documents referenced in this announcement at:

Oregon Department of Environmental Quality

700 NE Multnomah St., Ste. 600

Portland, OR, 97232

To schedule a review of all websites and documents referenced in this announcement, call Audrey O’Brien, Oregon Department of Environmental Quality, Materials Management, 700 NE Multnomah St., Ste. 600, Portland, OR, 97232, (503) 229-5072 (800-452-4011, ext. 5622 toll-free in Oregon).

DEQ can provide documents in an alternate format or in a language other than English upon request. Call DEQ at 800-452-4011 or email deqinfo@deq.state.or.us.

LEE Michael, 2019-05-23T10:22:00Z
Confirming with audio file.

LEE Michael, 2019-05-23T10:15:00Z
Proposed language – I was thinking that if we use this, we can simply delete Comments 5 and 6.