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Field Activity Update, December 2, 2019

Field work at the Ascon Landfill Site during the week of December 2 is planned to include:

Beginning Monday, December 2, field activities will include:

  • Installation of hydrant on Magnolia Street will begin this week, with temporary lane closure. The work includes a flag person for traffic safety. Air monitoring and dust control measures will be implemented during the work. Please refer to the November 25 post of Project Updates or the home page for more information.
  • “Winterizing” field activity to prepare the Site for the winter rainy season by implementing best management practices for stormwater management, in compliance with the Santa Ana Regional Water Quality Control Board permit. For more information, please see the October 8 post on Project Updates.
  • Mulch will be applied as part of winterizing activities relating to stormwater management
  • Delivery of supplies for winterizing field activities
  • Dust and odor mitigation measures continue to be implemented
  • Air quality monitoring continues
  • Weed abatement and removal as necessary
  • 24-hour onsite security continues

Field Activity Update, November 25, 2019

Field work at the Ascon Landfill Site during the week of November 25 is planned to include:

Field work or winterizing activities will not occur during Thanksgiving week, although there will be some personnel at the Site for monitoring and inspections. The Ascon team wishes the community a happy Thanksgiving!

Beginning Monday, November 25, activities will include:

  • Inspection of stormwater management by the City of Huntington Beach
  • Dust and odor mitigation measures continue to be implemented
  • Air quality monitoring continues
  • 24-hour onsite security continues

Field Activity Update, November 18, 2019

Field work at the Ascon Landfill Site during the week of November 18 is planned to include:

Beginning Monday, November 18, field activities will include:

  • “Winterizing” field activity to prepare the Site for the winter rainy season by implementing best management practices for stormwater management, in compliance with the Santa Ana Regional Water Quality Control Board permit (For more information, please see the October 8 post on Project Updates)
  • A long-term soil cover slurry, Posi-Shell®, will be applied in excavated areas as part of winterizing activities relating.
  • Delivery of supplies for winterizing field activities
  • Dust and odor mitigation measures continue to be implemented
  • Air quality monitoring continues
  • Weed abatement and removal as necessary
  • 24-hour onsite security continues

Field Activity Update, November 11, 2019

Field work at the Ascon Landfill Site during the week of November 11 is planned to include:

There will be no field work activity at the Ascon Landfill Site on Monday, November 11, in observance of Veterans Day. Thank you to all veterans, including those on the Ascon team, for your service.

Air monitoring and sampling at onsite and offsite community locations will continue on November 11.

Beginning Tuesday, November 12, field activities will include:

  • “Winterizing” field activity to prepare the Site for the winter rainy season by implementing best management practices for stormwater management, in compliance with the Santa Ana Regional Water Quality Control Board permit (For more information, please see the October 8 post on Project Updates)
  • Work to remove a driveway on the east side of Ascon will continue as part of winterizing activities relating to stormwater management.
  • There will be field work in the southeastern zone swale as part of winterizing activities relating to stormwater management.
  • Delivery of supplies for winterizing field activities
  • Dust and odor mitigation measures continue to be implemented
  • Air quality monitoring continues
  • Weed abatement and removal as necessary
  • 24-hour onsite security continues

Field Activity Update, November 4, 2019

Field work at the Ascon Landfill Site during the week of November 4 is planned to include:

  • “Winterizing” field activity to prepare the Site for the winter rainy season by implementing best management practices for stormwater management, in compliance with the Santa Ana Regional Water Quality Control Board permit (For more information, please see the October 8 post on Project Updates)
  • Delivery of supplies for winterizing field activities
  • Dust and odor mitigation measures continue to be implemented
  • Air quality monitoring continues
  • Weed abatement and removal as necessary
  • 24-hour onsite security continues

Ascon winterizing activity - sandbag placement
Winterizing activities at Ascon include the placement of sandbags in various locations around the 38-acre Site as part of stormwater management. The Ascon Site is inspected regularly by City stormwater inspectors to maintain compliance with the Santa Ana Regional Water Quality Control Board permit.

Field Activity Update, October 28, 2019

Field work at the Ascon Landfill Site during the week of October 28 is planned to include:

  • Soil sampling in the north east corner near the Hamilton Avenue and Magnolia Street intersection to confirm the nature of the materials, screen for total Volatile Organic Compounds (VOCs), and determine the potential for the materials to produce odor. Samples will be collected via hand-auger borings in nineteen locations. (For more information, please see the Work Notice on the home page of AsconHB.com and the October 25 post on Project Updates)
  • “Winterizing” field activity to prepare the Site for the winter rainy season by implementing best management practices for stormwater management, in compliance with the Santa Ana Regional Water Quality Control Board permit (For more information, please see the October 8 post on Project Updates)
  • Delivery of supplies for winterizing field activities
  • Dust and odor mitigation measures continue to be implemented
  • Air quality monitoring continues
  • Weed abatement and removal as necessary
  • 24-hour onsite security continues

Winterizing October 28, 2019
Workers are distributing and hand-placing sand bags throughout the 38-acre Ascon site as part of rainy season “winterizing” activities. This is an action considered a best management practice for stormwater management and is in compliance with the Santa Ana Regional Water Quality Control Board permit.

Frequently Asked Questions: Additional information about Test Results for Swimming Pool Water at Edison High School

Frequently Asked Questions: Additional information about Test Results for Swimming Pool Water at Edison High School

The City of Huntington Beach contracted with Sierra Analytical—an environmental laboratory certified by the Department of Health Services—to test the swimming pool water at Edison High School in June 2019. Those testing results can be found at https://www.hbuhsd.edu/apps/pages/ascon-landfill

Based on the Ascon project’s review of the City of Huntington Beach’s testing results, we’re responding to questions from community members. We provided a response to an earlier question on October 9 (scroll to that date on Project Updates). Below are additional questions we’ve received.

Where does southeast Huntington Beach drinking water come from?

The City of Huntington Beach provides drinking water to residents from both municipal groundwater wells and from imported water provided by the Metropolitan Water District. This is the water used in the Edison High School swimming pool. There are no drinking water wells in southeast Huntington Beach due to seawater intrusion into groundwater aquifers.

I noticed other chemicals listed on the Edison High School swimming pool test results. What do the results for hexavalent chromium mean?

The amount of hexavalent chromium reported in June 2019 was 0.96 micrograms per liter (ug/L), which is less than 1 part per billion (ppb). This amount is below the California Drinking Water Standard for total chromium of 50 parts per billion and also is below the federal Environmental Protection Agency (EPA) standard of 100 parts per billion for total chromium.

Total chromium includes all forms of chromium, including chromium-6 (hexavalent chromium). You can read more about this from EPA at https://www.epa.gov/dwstandardsregulations/chromium-drinking-water

What about the other chemicals detected in the pool water?

Three other chemicals—chloroform, bromodichloromethane and dibromochloromethane—were reported as detected in the pool water at levels below the California Safe Drinking Water Standard or Maximum Contaminant Level (MCL). These are three of the four regulated trihalomethanes (THMs) typically found in drinking water as a result of adding chlorine or some type of disinfection. The fourth regulated trihalomethane is bromoform, which was not found in the pool water.

Trihalomethanes are “disinfection byproducts” resulting from the addition of chlorine or other disinfectants to drinking water and also to swimming pools. The Safe Drinking Water Standard or California Maximum Contaminant Level (MCL) for total trihalomethanes is 80 micrograms per liter (ug/L) or parts per billion (ppb). Trihalomethanes are required to be reported as the combined total concentration of the four regulated chemicals.

  • The chloroform concentration was 13.2 micrograms per liter (ug/L or ppb)
  • The bromodichloromethane concentration was 4.56 micrograms per liter (ug/L or ppb)
  • The dibromochloromethane concentration was 1.40 micrograms per liter (ug/L or ppb)
  • Bromoform was not detected in the pool

The combined total concentration of the four regulated trihalomethanes reported in June 2019—including bromoform, the chemical that was not found—was 19.16 micrograms per liter (ug/L ) or parts per billion (ppb). This is well below the California MCL of 80 micrograms per liter (ug/L) or parts per billion (ppb).

More about chlorination:

Almost all community water systems in California—including Huntington Beach—use some type of chlorine-based disinfection method to prevent microbial waterborne disease epidemics, such as typhoid and cholera. Disinfection of community water systems also prevents growth of slime bacteria, molds and algae. Community water systems are required by federal law to ensure adequate disinfection so that a residual of the disinfectant is present throughout a water distribution system to protect public health.

The City of Huntington Beach provides more information about disinfectants and disinfection byproducts on page four of their annual Drinking Water Quality Report for 2019 at https://www.huntingtonbeachca.gov/2019dwqr/2019-water-quality-report.pdf

Do you have more questions about the Ascon project? Call the project hotline, 714-388-1825.

Field Activity Update, October 21, 2019

Field work at the Ascon Landfill Site during the week of October 21 is planned to include:

  • “Winterizing” field activity to prepare the Site for the winter rainy season by implementing best management practices for stormwater management, in compliance with the Santa Ana Regional Water Quality Control Board permit
  • Delivery of supplies for winterizing field activities
  • Dust and odor mitigation measures continue to be implemented
  • Air quality monitoring continues
  • Weed abatement and removal as necessary
  • 24-hour onsite security continues