RULES: Long Term 2 Enhanced Surface Water Rule - Original File
What does this rule package cover?
These rules describe and establish the general requirements for treatment techniques and recordkeeping for systems treating surface water.
Which rules are under review?
The following rules are included in this rulemaking:
Rule Number Title
3745-81-31 Reporting requirements for public water systems.
3745-81-64 General requirements of the “Long Term 2 Enhanced Surface Water Treatment (LT2) Rule.
3745-81-67 LT2 bin classification and treatment technique requirements.
3745-81-68 Microbial toolbox options for meeting Cryptosporidium treatment requirements.
3745-81-69 Reporting and recordkeeping requirements for LT2 only.
Why are these rules under review and what types of changes are being considered?
DDAGW has reviewed rules 3745-81-31, 3745-81-64, 3745-81-67, 3745-81-68 and 3745-81-69 of the Ohio Administrative Code (OAC) to satisfy the five-year rule review requirements of section 106.03 of the Ohio Revised Code. DDAGW is proposing 3745-81-31 and 3745-81-64 as “no change”. The following revisions are being considered:
3745-81-67
· Updating references.
· Changing “crypotosporidium” to “cryptosporidium”.
· Removing March 1, 2010 deadlines.
· Removing the Cryptosporidium Treatment Compliance Dates Table.
3745-81-68
· Removing references to 3745-81-67.
· Minor grammar corrections.
· Removing references to finalized programs in 2006.
· Updating references.
· Updating links.
3745-81-69
· Updating references.
· Updating the Microbial Toolbox Reporting Requirements schedule to “Upon intent”, “watershed control plan is approved” and “in the schedule as approved by the director”.
Are there changes from the July 2026 draft rules?
No.
What additional information is the agency seeking?
The agency is seeking comments from interested stakeholders (public, local officials, and National Pollutant Discharge Elimination System [NPDES] permit holders, industry sectors, other state agencies, consultants and environmental organizations) who may be impacted by these revisions and additions. General comments and specific factual information are welcome.
What is the rulemaking schedule?
A public hearing and public comment period on the proposed rules will be held to consider public comments in accordance with Section 119.03 of the Ohio Revised Code. The purpose of the public hearing is to give interested persons the opportunity to present oral or written comments on the proposed rules. At the close of the public comment period, the Agency will review the comments, make any necessary revisions to the rules, and then adopt the rules. A response to comments document will be prepared and sent to all parties that comment on the proposed rules.
How can I comment on the proposed rules?
There are three options for submitting your comments:
What does this rule package cover?
These rules describe and establish the general requirements for treatment techniques and recordkeeping for systems treating surface water.
Which rules are under review?
The following rules are included in this rulemaking:
Rule Number Title
3745-81-31 Reporting requirements for public water systems.
3745-81-64 General requirements of the “Long Term 2 Enhanced Surface Water Treatment (LT2) Rule.
3745-81-67 LT2 bin classification and treatment technique requirements.
3745-81-68 Microbial toolbox options for meeting Cryptosporidium treatment requirements.
3745-81-69 Reporting and recordkeeping requirements for LT2 only.
Why are these rules under review and what types of changes are being considered?
DDAGW has reviewed rules 3745-81-31, 3745-81-64, 3745-81-67, 3745-81-68 and 3745-81-69 of the Ohio Administrative Code (OAC) to satisfy the five-year rule review requirements of section 106.03 of the Ohio Revised Code. DDAGW is proposing 3745-81-31 and 3745-81-64 as “no change”. The following revisions are being considered:
3745-81-67
· Updating references.
· Changing “crypotosporidium” to “cryptosporidium”.
· Removing March 1, 2010 deadlines.
· Removing the Cryptosporidium Treatment Compliance Dates Table.
3745-81-68
· Removing references to 3745-81-67.
· Minor grammar corrections.
· Removing references to finalized programs in 2006.
· Updating references.
· Updating links.
3745-81-69
· Updating references.
· Updating the Microbial Toolbox Reporting Requirements schedule to “Upon intent”, “watershed control plan is approved” and “in the schedule as approved by the director”.
Are there changes from the July 2026 draft rules?
No.
What additional information is the agency seeking?
The agency is seeking comments from interested stakeholders (public, local officials, and National Pollutant Discharge Elimination System [NPDES] permit holders, industry sectors, other state agencies, consultants and environmental organizations) who may be impacted by these revisions and additions. General comments and specific factual information are welcome.
What is the rulemaking schedule?
A public hearing and public comment period on the proposed rules will be held to consider public comments in accordance with Section 119.03 of the Ohio Revised Code. The purpose of the public hearing is to give interested persons the opportunity to present oral or written comments on the proposed rules. At the close of the public comment period, the Agency will review the comments, make any necessary revisions to the rules, and then adopt the rules. A response to comments document will be prepared and sent to all parties that comment on the proposed rules.
How can I comment on the proposed rules?
There are three options for submitting your comments:
· At the hearing
· Electronically through SmartComment
· Via postal mail to Rule Coordinator, Ohio EPA – Division of Drinking and Ground Water, PO Box 1049, Columbus, Ohio 43216-1049
Written comments will be accepted until 5 p.m. on December 4, 2026.
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