Download - Rules Overview: Why Do We Do What We Do Alisa Max, P.E. Harris County Alisa Max, P.E. Harris County
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Rules Overview: Why Do We Do
What We Do
Rules Overview: Why Do We Do
What We Do
Alisa Max, P.E.Harris County
Alisa Max, P.E.Harris County
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Topics to be discussed today
• Rules overview
• Big Picture
• TMDL’s And Their Impact
• Closing Thoughts
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Overview
OSSF’s Governed By:
• Texas Health & Safety Code, Chapter 366
• Texas Water Code, Chapters 7 & 37
• 30 TAC 285
• Local Regulations
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Texas Health & Safety CodeChapter 366
Health & Safety Code, Title 5. Sanitation and Environmental Quality, Subtitle B. Solid Waste, Toxic Chemicals, Sewage, Litter, and Water, Chapter 366. On-Site Sewage Disposal Systems
Delegates powers to TCEQ &
Provides for Authorized Agents
http://www.statutes.legis.state.tx.us/Docs/HS/htm/HS.366.htm
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Texas Water Code, Chapter 7
Water Code, Title 2. Water Administration, Subtitle A. Executive Agencies, Chapter 7. Enforcement
Defines Enforcement
Protocols for TCEQ
http://www.statutes.legis.state.tx.us/Docs/WA/htm/WA.7.htm
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Texas Water Code, Chapter 37
Water Code, Title 2. Water Administration, Subtitle F. Occupational Licensing and Registration, Chapter 37. Occupational Licensing and Registration
Discusses Licensing and
Registration Requirements
http://www.statutes.legis.state.tx.us/Docs/WA/htm/WA.37.htm
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30 TAC 285Texas Administrative Code Title 30. Environmental
Quality, Part 1. Texas Commission on Environmental Quality, Chapter 285. On-Site Sewage Facilities
The TCEQ’s Rules to implement the program that has been delegated to them through the Texas Health & Safety Code & the Texas Water Code
http://info.sos.state.tx.us/pls/pub/readtac$ext.ViewTAC?tac_view=4&ti=30&pt=1&ch=285
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Local Regulations
30 TAC 285.B allows for delegation of the administration of an OSSF Program to local entity known as an Authorized Agent of the State.
The Authorized Agent must enforce 30 TAC 285 and the Texas Health & Safety Code Chapter 366. The Authorized Agent may also proposed more stringent standards than the State provided the TCEQ approves those provisions.
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So Why Should I Care?
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Environmental Stewardship
It’s your backyard!
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Not doing it for you?
How about Health?It could be your drinking water supply
that you’re protecting
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Or the child playing near the
sewage leak or in receiving waters
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Still Not Doing It For You?
It’s the law!
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The Big Picture
We’re here to protect:
• Human Health
• The Environment
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Rules primarily target the following 3 objectives:
• The ability of the system to meet wastewater treatment objectives
• The ability to maintain the system
• Protect neighbors, self & the environment
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To what levels do we protect the public and the environment?
• It depends on how the effluent is disposed of.– Standards for subsurface disposal is set in
rules. It’s assumed soils do much of the work.– Standards for surface disposal is set in rules
also, but is influenced by the Clean Water Act and the Texas Water Code as the flow could end up in a bayou or stream.
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To what levels do we protect the public and the environment?
The EPA & TCEQ define standards for our streams that they believe are the minimum amounts to protect the public & the environment. They’ve developed Water Quality Standards.
http://www.tceq.texas.gov/assets/public/compliance/monops/water/10twqi/2010_guidance.pdf
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Water Quality Standards- examples
• Dissolved Oxygen, • toxicity in water & sediment (12
metals & 26 organic substances for water; additional for sediments),
• macrobenthic & fish
communities
Aquatic Life Use [How are the Fish & other critters? Is the fishing good? Is your habitat good?]:
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Water Quality Standards- examples
Recreation Use: [Want to go swimming? Boating? Play in or near the water? Touch the water without getting a stomach ache?]:
• Bacteria
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Water Quality Standards- examples
• Water temperature, • pH (high or low), • Chloride, sulfate, & total
dissolved solids,• nutrients, • altered color (or turbidity)
General Use [Affects everything. Makes other things go wrong if these are wrong.]:
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TCEQ’s General
Process to determine if
your streams are OK, & what they do if
they aren’t
Monitor Stream
Exceed Standard?
YES
Designate Impaired. Begin “delisting”
process. Default=TMDL
Create TMDL Equation: Sources & How Much Reductions Required
Assume TMDL
Create implementation plan to reduce loads
based on TMDL equation and/or local preferences.
Implement
Plan
Monitor Stream Meets Standard? NO
Modify Implementation Plan
Implement
Monitor Stream Meets Standard?
NO
YES
NO
YES
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TCEQ’s General Process to determine if your streams are OK, & what they do if they aren’t
• Monitor & Sample the Streams– The Clean River Program (H-GAC with TCEQ funds)
• Compare results with the State’s Water Quality Standards. Determine which streams are impaired.
• Why are those streams impaired? Create a Total Maximum Daily Load (TMDL) equation to determine sources and give them each an allocation to bring the stream back into compliance
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TCEQ’s General Process to determine if your streams are OK, & what they do if they aren’t
• Create an Implementation Plan & implement it.
• Keep on monitoring. Did the plan work?
• If not, modify the plan. Try new things out. Keep trying until you find a plan that works.
• Meanwhile, the rules keep changing to bring streams into compliance!
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DON’T SHOOT THE MESSENGER!
When Assigning Causes of Impairments:
EPA’s Cause Code # 92: On-Site Treatment Systems (Septic Systems and Similar Decentralized Systems)
[From Table 4.2: List of EPA Source Codes and Source Categories]
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Buffalo & White Oak Bayou Bacteria TMDL Project
“Onsite sewage facilities (OSSF’s) can be a source of indicator bacteria to streams and rivers. Indicator bacteria loading from failing OSSF’s can be transported to streams in a variety of ways, including runoff from surface drainage to the receiving waters or from transport by storm water runoff.” (pg 53)
OSSF’s contributed 145 billion MPN/day E. coli to parts of the watershed. (Table 25)
All loads from OSSF’s will need to be reduced from 59% - 99.7% (depending upon location) (Tables 31-32)
Source: “Eighteen TMDLs for Bacteria in Buffalo and Whiteoak Bayous and Tributaries”, dated April 8, 2009, and prepared by University of Houston for Total Maximum Daily Load Program, Texas Commission on Environmental Quality
http://www.tceq.texas.gov/assets/public/implementation/water/tmdl/22buffalobayou/22-bbbwbtmdl_adopted.pdf
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So what are we doing about bacteria now?
Harris County’s Local Order, Section 10.Y: In watersheds where one or more stream segments are listed as impaired for bacteria on the EPA 303(d) list the following additional requirements apply:
1)Electronic monitoring as outlined in amendment M(4) shall be required for all new and replacement on-site sewage facilities.
2)All on-site sewage facilities must use secondary treatment meeting a 30 day average CBOD of 10 mg/L and TSS of 10 mg/L. On NSF Standard 40 units this must be demonstrated by test results. On engineered one of a kind systems, a design parameter of 5 mg/L CBOD and 5 mg/L TSS shall be used.
3)Pump tanks shall be equipped such that when pumping a portion of the effluent is returned below static water level to insure scour of the pump tank bottom.
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So what are we doing about bacteria now?
Bacteria Implementation Group’s Implementation Plan (approved by Group; pending TCEQ approval): Created by a 31 member stakeholder group and has 11 major implementation strategies included, one of which is addressing OSSF’s. Specific implementation activities for OSSF’s recommended are:
1)Identify and address failing systems: includes items such as increased enforcement, owner education, and repair/replace failing systems or sewer failing systems.
2)Address inadequate maintenance of OSSF’s: increase homeowner education, encourage repair & pumpout logs be maintained & consider information passed from seller to buyer at real estate transactions, coordinate with real estate industry, & act to increase maintenance of OSSF’s via measures like increased inspections.
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So what are we doing about bacteria now?
Bacteria Implementation Group’s Implementation Plan (approved by Group; pending TCEQ approval):
3)Legislative or other regulatory actions: increase Texas On-site Wastewater Treatment Research Council fee by $10 to help our area, Create model orders, ordinances & resolutions, ask for greater TCEQ funding support for OSSF’s
http://www.h-gac.com/community/water/tmdl/BIG/documents/I-Plan_for_Formal_Support%20_Website.pdf
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Implication:
• New treatment technologies that better address bacteria, nutrients and solids will likely have a greater appeal in the near future!
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Be prepared for Changes
• Changes are likely in the way that on-site systems will be designed, permitted, installed and maintained in areas where bacteria or other pollutants is a problem.
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One last thing….
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And why do so many people in the OSSF industry need licenses and continuing
education?You are professionals! You
should be treated as such and licensed as such.
The OSSF profession keeps changing and evolving. Continuing education makes sense to keep one’s knowledge current.
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Questions?