A History of

Environmental Compliance

The U.S. Environmental Protection Agency (EPA) maintains a database of violation and compliance actions for each source registered with EPA. This database is accessible to the public on EPA’s Enforcement and Compliance History Online (ECHO) web-site. TMPA’s power plant (Gibbons Creek Steam Electric Station) and mine (Gibbons Creek Lignite Mine) are each listed on this site. TMPA’s data on this website can be found here . This website was the source for KBTX in their report that aired on Monday night, February 16, 2015.

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"TMPA provides efficient, clean electrical power at an affordable price to help communities prosper."

About Texas Municipal Power Agency

Texas Municipal Power Agency (TMPA) is a power production station located outside of Bryan/ College Station, Texas. Owned by the four member cities of Bryan, Denton, Garland and Greenville; TMPA provides efficient, clean electrical power at an affordable price to help communities prosper. TMPA operates as a non-profit municipality. We're also known as Gibbons Creek Steam Electric Station (GCSES). TMPA employs more than 150 people dedicated to safe, clean power generation. Our employees are active in the community, donating time for Habitat for Humanity, food for Twin City Mission; adopting families during the holiday season and much more.
How TMPA works

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TMPA's History of Environmental Compliance

The State of Texas has primacy for the regulation of the Clean Air Act and the Clean Water Act and assesses fines for significant non-compliance. In the last five years, TMPA has only been assessed one fine by the State. That fine was in 2010 for an administrative non-compliance matter (see first item in the table below).

For context, it should be noted that both the power plant and the mine have numerous standards and regulations with which they must comply. The standards contain requirements for multiple reports whose contents are used to demonstrate compliance with the standards. These reports add up to thousands of data entries on an annual basis. Most of the non-compliance items listed below involve problems in filling out or filing these reports. Even the one significant violation shown on the ECHO site is for a report that contained all of the correct information but had it listed in the wrong places (Clean Water Act (power plant): Q3 2014). This problem was corrected in a resubmission to the state of Texas on January 19, 2015. Corrected data entry errors are not viewed as violations by the state of Texas. That portion of the ECHO database however appears to only be updated on a quarterly basis. TMPA therefore expects the significant violation to disappear from ECHO in the second quarter of 2015. Information provided on this table has been verified by TMPA Staff.

Date of alleged violation Description Explanation Severity Nature of violation
Clean Air Act
Q1 2010 Failure to submit correct deviation forms Information provided was correct but submitted on incorrect forms. Fine reduced from $2,750 to $2,200 because of TMPA's prompt response Administrative; no impact to environment.
Q3 2014 Fall 2013 semi-annual report submitted one day late. Reporting period miscalculated. Minor no fine assessed Administrative; no impact to environment.
Q3 2014 Spring 2014 semi-annual report submitted one day late. No feed-back from previous report and reporting period again miscalculated. Minor no fine assessed Administrative; no impact to environment.
Q3 2014 Spring 2014 semi-annual report submitted one day late. No feed-back from previous report and reporting period again miscalculated. Minor no fine assessed Administrative; no impact to environment.
Q3 2014 Expiration date exceeded for calibration gas used for Continuous Emissions Monitoring System (CEMS) Expiration date overlooked owing to change in personnel after reduction in force. Minor no fine assessed No impact to environment.
Clean Water Act (power plant)
Q4 2011 Residual chlorine of 4.33 mg/l which is outside the permitted range (1 mg/l 4 mg/l). Cause unknown. Minor no fine assessed Sewage Treatment Plant is an internal outfall; no environmental impact.
Q1 2012 Data entry omission on electronic Discharge Monitoring Report (DMR). Only one column was completed; should have been two (entry was pass/fail type and entry should have been entered as "pass" in both columns). Form was corrected in following quarter. None no fine assessed Administrative; no impact to environment.
Q3 2012 Data entry omission on electronic Discharge Monitoring Report (DMR). Drop-down box not properly entered. None no fine assessed Administrative; no impact to environment.
Q4 2012 Sulfate exceeded daily average Total Sulfate permit limit by 21% (for this quarter). Accumulation of sulfates in bottom ash due to cycling of unit. Minor no fine assessed Minor environmental impact.
Q1 2014 Data entry error for bio-monitoring results one column entered instead of two Human error: only one column was completed; should have been two (data was in compliance). Form was corrected in following quarter. Minor no fine assessed Administrative; no impact to environment.
Q3 2014 Data entry error for bio-monitoring results one column entered instead of two. Human error: only one column was completed; should have been two (data was in compliance). Form was corrected in January 2015 (since the correction is not currently reflected on the EPA web-site, it is classified as a significant violation. TMPA expects re-classification after correction is entered onto web-site). Minor no fine assessed Administrative; no impact to environment.
Q3 2014 Residual chlorine of 4.2 mg/l which is outside the permitted range (1 mg/l 4 mg/l). Cause unknown. Minor no fine assessed. Sewage Treatment Plant is an internal outfall; no environmental impact.
Q4 2014 Biological Oxygen Demand (5-day) of 103 mg/l which is above the permitted limit of 30 mg/l. Cause unknown. Minor no fine assessed. No environmental impact.
Clean Water Act (mine)
Q1 2012 Exceedances at Pond HR-2 outfall: Fe (3.4 mg/l limit is 3.0 mg/l), Total Suspended Solids (daily average was 175, limit is 35 mg/l; daily maximum was 271 mg/l, limit is 70mg/l). Large flush of loose material after 2011 drought and construction modifications to Pond HR-2. Minor no fine assessed. Limited environmental impact.
Q2 2012 pH 5.7 (outside of permitted range of pH 6.0 pH 9.0) Cause unknown. Minor no fine assessed. Minor environmental impact.
Q1 2014 pH 9.5 (outside of permitted range of pH 6.0 pH 9.0). Non-compliant runoff from upstream landowner (Pond HR-2). Minor no fine assessed. Minor environmental impact.
Q4 2014 Suspended Solids (daily average was 51, limit is 35 mg/l). Runoff could not be detained to allow for settling. Minor no fine assessed. Minor environmental impact.
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