Ballard Pits Chronology
- December 2004, a hazard ranking score (HRS) document was prepared for the Ballard Pits site.
- January 13, 2006, a legal notice was published in the Texas Register (31 TexReg 316-317) describing the site and proposing its listing on the state Superfund registry. The TCEQ proposed to use commercial/industrial criteria in setting cleanup levels based on the existing land use of the property, as is prescribed in 30 TAC Chapter 350, Texas Risk Reduction Program, under §350.53.
A public meeting to receive citizen comments was scheduled for February 23, 2006, at the Calallen High School.
- February 23, 2006, approximately 50 interested members of the community attended the public meeting. No challenges were received to the proposal of the Ballard Pits site to the state Superfund registry.
- July 2006, a work order was issued for the start of the remedial investigation.
- August 2006, a remedial investigation soil and groundwater sampling event was performed.
- February 2007, the technical memorandum for the remedial investigation was reviewed and approved, completing the remedial investigation.
- November 30, 2007, a legal notice of intent to perform a removal action at the Ballard Sand Pits was published in the Texas Register (32 TexReg 8963).
- December 2007, Site Update Newsletter mailed out to property owners and residents.
- January 8, 2008, a public meeting was held to inform the community of the planned removal action. This removal action is designed to prevent the spreading of the contaminated waste material to the surrounding property and the possible infiltration into the shallow groundwater which is used by adjacent residents for their drinking water. The removal action will consist of excavation of contaminated soil and waste material.
- January 9, 2008, TCEQ staff presented details of the planned removal action to the Nueces County commissioners.
- March 27, 2008, a community meeting was held at the Calallen High School to provide additional information and to answer any remaining questions about the planned removal action.
- April 2, 2008, TCEQ staff presented additional information regarding the planned removal action to the Nueces County commissioners.
- March 2008, Site Update Newsletter mailed out to property owners and residents.
- April 2008, Site Update Newsletter mailed out to property owners and residents.
- May 6, 2008, The TCEQ held a public meeting held at the Johnny Calderon Building. TCEQ staff presented information regarding the new information discovered during excavation of the west pit, why excavation activities would be temporarily suspended, and what actions TCEQ would take to secure the site and monitor during the interim.
- May 14, 2008, TCEQ staff presented information regarding the temporary suspension of the removal action to the Nueces County commissioners.
- June 27, 2008, a community relations plan was prepared for the Ballard Pits site.
- October 14, 2008, Site Update Newsletter was mailed out to property owners and residents. The removal of waste materials and the backfilling of the west pit were completed. Approximately 6,662 cubic yards of hazardous waste and 9,335 cubic yards of nonhazardous waste from the cleanup of the west pit were disposed of at an approved landfill.
- November 17–26, 2008, additional fieldwork was completed to further define the nature, extent and treatment options for the contamination associated with the east pit. Groundwater samples were taken from existing monitoring wells and the residential water wells adjacent to the site.
- December 17, 2008, the TCEQ presented a project status update to the Nueces County commissioners.
- December 22, 2008, groundwater samples were collected from off-site monitor wells and residential water wells adjacent to the site.
- March 2009, the residential wells adjacent to the pits were sampled. Subsurface soil samples were also collected in an effort to determine the horizontal extent of wastes.
- May 13, 2009, began excavation of wastes and the implementation of an air monitoring plan. Transportation of wastes for final off-site disposal is under way.
- May 15, 2009, Site Update Newsletter mailed out to property owners and residents.
- May 20, 2009, the TCEQ presented a project status update to the Nueces County commissioners.
- June 10, 2009, all removal actions have been completed in the West Pit. Removal activities are underway at the East Pit with current activities focused on the excavation and disposal of wastes from the western end of the pit. An Ambient Air Monitoring Plan is being implemented to monitor the air during the excavation of wastes.Treatability studies are being refined concurrently with the excavation of wastes in an effort to arrive at the most efficient and cost-effective approach for remediating the site.
- July 13, 2009, an expanded groundwater sampling event was conducted to sample off-site monitor wells and residential water wells.
- July and August 2009, TCEQ expanded the sampling of neighborhood residential wells and conducted surface water sampling. Data results indicate no contamination from the site has affected any of these drinking water sources. No contamination has been detected in any of the neighboring private wells sampled to date.
- October 12, 2009, a Site Update Newsletter and notice of Availbility Session meeting was mailed out to property owners and residents.
- November 20, 2009, TCEQ completed removal activities at the East Pit including the adjacent utility easement and affected residential properties.
- April 15, 2010, A notice of a was published in the Corpus Christi Caller Times announcing a community meeting scheduled for April 22, 2010 from 6:30pm to 8:30pm at Calallen High School, 4001 Wildcat Drive, Corpus Christi, TX.
- April 16, 2010, A newsletter was mailed out to property owners and area residents.
- July 1, 2010, Drinking Water Sampling event was performed the week of June 21, 2010.
- April 26, 2011, A newsletter was mailed out to property owners and area residents.
- August 2011, A Focused Remedial Investigation for all 297 acres has determined there are no additional pits. All waste sources representing immediate threats to human health or the environment have been addressed. The site will continue in the Superfund process to ensure a long term remedy is selected. Routine groundwater and surface water sampling will continue to ensure drinking water sources remain unaffected.
- February 20, 2012, Groundwater sampling event was conducted during the week.
- April 2012, A groundwater monitoring event was completed.
- July 2012, The Final Historical Chain of Title and Plat Map, and Superfund Sites B Current Property Owner Report was completed to support the effort to file a lien on the property.
- September 20, 2012, Development of a Remedial Investigation work plan (RIWP) is in progress to determine vertical extent of contaminants. The work plan will support installation of three double cased monitoring wells to be completed one each in the second groundwater bearing unit beneath the east, west and north pits. The RIWP will also address routine groundwater monitoring of existing on-site and off-site monitoring wells, and a study of background groundwater arsenic levels. The field work is planned for early October 2012.
- December 2012, three new monitoring wells were installed and screened in the second groundwater bearing unit adjacent to each of the pits, and routine groundwater monitoring of the existing monitoring wells at the site was completed. Water samples from off-site drinking water wells and off-site surface water samples were collected for an arsenic background study.
- March 2013, a scoping meeting in Austin was held to determine requirements for completing an Affected Property Assessment Report (as part of the Remedial Investigation) and initiation of a Feasibility Study.
- April 2013, a Remedial Investigation Technical Memorandum was completed that summarized the results of the routine groundwater monitoring event and the arsenic background study as follows:
Groundwater monitoring - The groundwater analytical results were consistent with previous results for elevated arsenic levels (levels greater than 0.01 mg/L) in a majority of the wells. Elevated arsenic levels were detected in the second groundwater bearing unit at two of the new monitoring well locations. One monitoring well located in the west pit was found to have light non-aqueous phase liquid (LNAPL) in the well and was not sampled.
Arsenic background study - An arsenic concentration of 0.0396 mg/L was determined to represent the upper 95% statistical limit of background arsenic in off-site drinking water wells. An arsenic concentration of 0.119 mg/L was determined to represent the upper 95% statistical limit of background arsenic in surface water.
Where to Find Complete Records
To review complete copies of the reports and plans for the Ballard Pits site, go to either of these official record repositories:
- Corpus Christi Public Library, Northwest Branch
3202 McKinzie Road
Corpus Christi, TX 78410
- TCEQ Records Management Center
Physical address: Building E, First Floor, Room 103
12100 Park 35 Circle
Austin, TX 78753
Return to the main Web page for the Ballard Pits site.