Presentation on theme: "Learning Objectives Give a brief explanation of the Love Canal Disaster. Pick two (2) toxins that were released from the landfill and list their health."— Presentation transcript:
Learning Objectives Give a brief explanation of the Love Canal Disaster. Pick two (2) toxins that were released from the landfill and list their health effects. What are the difference between our landfills today and the way the landfill was constructed/maintained in the Love Canal Disaster. Explain CERCLA. How long after a landfill is finished can you build on it?
It started out as a bid for hydroelectricity… Back in the 1890s… William T. Love Very ambitious entrepreneur Niagara Falls, NY Rapidly growing city Harness waters power! Model City/shipping lane Lots of expectations!
Project abandoned Only a few houses and streets built and a small section of the canal dug before Love ran out of $$ 1 mile long 50 ft wide, 10-40 ft deep Became local recreation area
Sold, sold, & sold again! Sold to the city in 1920s City dump site Hooker Chemicals & Plastics in 1942 Granted permission to use the canal Dumped over 21,000 tons of chemical wastes over 10 years. Niagara Falls Board of Education in 1953 Needed land, like BAD.
Hooker Chemicals & Plastics Needed a place to dump their trash. Drained the canal, lined it with clay. Filled it with 55gal barrels Halogenated organics, pesticides, chlorobenzenes and dioxin, etc… Buried 20-25 ft. Bought the land in 1947 Once full, covered with clay and soil and grass grew. Wanted to sell the land.
Niagara Falls BOE Rapidly growing district Sought the land next to the canal Hooker Co. wouldnt sell the land BOE got dirty (eminent domain) Bought 70+ acres of land for $1 Hooker Corp. made sure to protect themselves in the deed negotiated Built school over the canal and homes on adjacent land
Elementary school, homes, expressway... Found barrels during excavation at original school site Moved location ~85ft to the North During first year, 25ft area of land crumbled revealing buried barrels Broke thru the clay barrier when constructing residential sewers LaSalle Expressway cut off groundwater from reaching Niagara River Both good and bad
The results…Chronology In 1976, two reporters for the Niagara Gazette, David Pollak and David Russell, tested several sump-pumps near Love Canal and found toxic chemicals in them The matter went quiet for more than a year and was resurrected by reporter Michael Brown, who then investigated potential health effects by carrying forth an informal door-to-door survey in the early summer of 1978, finding birth defects and many anomalies. The New York State Health Department followed suit and found an abnormal incidence of miscarriages. Government official show little interest in the matter. Love Canal Homeowners' Association was founded
The results…Chronology The lack of public interest in Love Canal made matters worse for the homeowners' association, which now battled two organizations who were spending vast amounts of money to disprove negligence. Following survey of multiple hideous birth defects and reports of cancer, New York State Health Commissioner, Robert Whalen declares a state of emergency exists at the Love Canal and orders closing of 99th Street School and evacuation of pregnant women and children under the age of two. (1978) President Jimmy Carter approves emergency financial aid for the area
Jimmy Carter Niagara Falls Mayor Michael O'Laughlin, President Jimmy Carter and New York Governor Hugh Carey
The results…Chronology November 10, 1978 200 tons of dioxin, a lethal chemical are reported buried in the canal and over 200 chemical compounds are identified as being buried in the canal. Residents fears heighten. Report of this find and refusal to continue evacuation lead to fierce protest
The results…Chronology At first, scientific studies did not conclusively prove that the chemicals were responsible for the residents' illnesses, and scientists were divided on the issue, even though eleven known or suspected carcinogens had been identified, one of the most prevalent being benzene. There was also dioxin (polychlorinated dibenzodioxins) in the water, a very hazardous substance. Dioxin pollution is usually measured in parts per trillion; at Love Canal, water samples showed dioxin levels of 53 parts per billion
The results…Chronology After a long hard battle, in April 1979 EPA approves $4 million for remedial work at the Love Canal. City receives $1 million in Federal Disaster Assistance Administration funds EPA announces creation of a special task force to aid in identification and clean-up of toxic waste sites The government relocated more than 800 families and reimbursed them for their homes,
EPA @ work, FINALLY EPA truck in the foreground cleaning the playground of the 99 th street school. School can be seen in background Abandoned Love Canal home with EPA monitoring unit
The results…Chronology Congress passed the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA), or the Superfund Act in 1980, that holds polluters accountable for their damages. Hooker Chemical was found negligent, but not reckless, in its handling of the waste and sale of the land to the Niagara Falls School Board.
So, What happened? The dumpsite was not properly covered. Lots of rain. No leachate pool Leachate seep through the soil into peoples yard, groundwater, basements First chemical seepage into basement reported in 1959. Evacuation in 1979. 20 YEARS LATER????
So, What happened? Despite the disclaimer by Hooker Chemical (not very surprising name), the 99 th St. School was built Upon discovery of the waste during excavation, the site was moved ONLY 80ft North 1955, school completed, playground collapsed, exposing chemicals. Mixed with rainwater, puddle created. Children play in puddle.
So, What happened? City tries to build underground sewage system for rainwater. Construction broke the clay cover More waste chemical seep Resident unaware of canal history. Not included in contract. Therefore, no monitoring and further evaluation Clay crack LaSalle Expressway construction cut off groundwater from reaching Niagara River. Dump site flooded Puddle of chemical emerge in yard Everything goes amiss from there
Why It happened? Signs were, for the most part, ignored. Low income, lower class families. Government ignored their plea Of course, disregard to human life and future generation Trees were dying, leaves turning black Swimming pool floating away Puddles of chemicals found in peoples yard. They did little about it The choking smell It wasnt until 20yrs after the first signs that the town was evacuated
So, what are the chemicals found Over 80 compounds in total we isolated, among them CompoundAcute EffectsChronic Effects benzene Narcosis Skin irritant Acute leukemia Aplastic anemia Pancytopenia Chronic lymphatic leukemia Lymphomas (probable) toluene Narcosis (more powerful than benzene) Anemia (possible) Leukopenia (possible) benzoic acidSkin irritant lindane Convulsions High white cell counts trichloroethylene Central nervous depression Skin irritant Liver damage Paralysis of fingers Respiratory and cardiac arrest Visual defects Deafness dibromoethaneSkin irritant benzaldehydesAllergen methylene chloride Anesthesia (increased carboxy hemoglobin) Respiratory distress Death carbon tetrachloride Narcosis Hepatitis Renal damage Liver tumors (possible) chloroformCentral nervous narcosis Skin irritant Respiratory irritant Gastrointestinal symptoms
Impact of the Chemicals Maternal Age Number of Pregnancies Number of Miscarriages Observed <2020 20-24130 25-29283 30-34196 35-39158 All Ages7717 Table II Maternal Age and Number of Miscarriages (Observed and Expected*) Among Residents of the Love Canal Even though 17 miscarriages dont seem too much, remember this is a small community. Thats 22% miscarriages in a very short time. Type of MalformationSex Date of Birth Medication, Radiation during pregnancy Cleft palate, deformed ears and teeth, hearing defect, mental retardation, heart defect F11/68No Abnormalities of renal pelvis and reflux ureters F4/75No Mental retardation (autistic)F1/66No Congenital deafnessM2/66No Club footM1/58No TABLE IV Documented Congenital Malformations Among Children From the Love Canal Some of the major birth defects documented at Love Canal
AFTERMATH EPA addressed the Site in 6 stages: Landfill Containment w/ leachate collection, treatment, and disposal Excavation & Interim storage of the sewer & creek sediments Final treatment and disposal of the sewer and creek sediments and other Love Canal waste Remediation of the 93 rd Street School soils EDA home maintenance and technical assistance by the Love Canal Area Revitalization Agency (LCARA) Buyout of homes and other properties in the EDA by LCARA
Dioxins Polychlorinated dibenzodioxins (PCDDs), or simply dioxins, are a group of polyhalogenated compounds which are significant because they act as environmental pollutants. They are known mutagens, and suspected human carcinogens
INITIAL ACTIONS 1978 System installed to collect leachate from the site Landfill area was covered and fenced Leachate treatment plant was constructed 1981 EPA conducted environmental studies
LANDFILL CONTAINMENT 1982 Barrier drain and a leachate collection system constructed by EPA The temporary clay cap was covered with synthetic material to prevent rainwater from entering landfill Houses adjacent to landfill and school were demolished
LANDFILL CONTAINMENT 1985 NYSDEC installed 40 acre cap on landfill Improvements made on the leachate collection and treatment system New leachate treatment facility constructed
SEWERS & CREEKS 1985-1989 Sewers and the Black Creek culverts were hydraulically cleaned Removal and dispersal of contaminated sediments from Black Creek and Bergholtz Creek (Dredging) 14,000 cubic yards of sediments removed Sewers inspected for defects that could allow contaminants to migrate 68,200 linear feet of storm and sanitary sewers were cleaned
THERMAL TREATMENT OF SEWER AND CREEK SEDIMENTS 1987 – EPA addressed the destruction and disposal of the dioxin-contaminated soil On-site facility to dewater and contain sediments Separate facility to treat the dewatered contaminants and leachate treatment facility residuals by high-temperature thermal destruction All contaminated soil was removed from 93 rd Street School property; building was demolished
HOME MAINTENANCE Federal government and State of New York purchased affected properties in the EDA EPA provided funds for the rehabilitation of the site Since rehabilitation program began: Approximately 260 homes sold Senior citizen housing development
CLEANUP PROGRESS 1988 EPA issued Love Canal EDA Habitability Study Study conclusions: Areas 1-3 of the EDA, not suitable for habitation without remediation, but may be used for commercial and/or industrial purposes Areas 4-7 of the EDA may be used for residential purposes
CLEANUP PROGRESS Quantities of Love Canal waste materials (2008) Total sewer and creek sediment wastes 38,900 cubic yards at 1.6 tons/cubic yard = 62,240 tons Other debris and waste 21,167 pounds Spent Carbon Filter Wastes 30,080 pounds
CLEANUP PROGRESS Numerous Cleanup Activities Landfill containment Lechate collection and treatment Removal and disposition of contaminated sewer and creek sediments Site is deemed safe for surrounding residents and the environment
CLEANUP PROGRESS Revitalization New homeowners have repopulated areas of the site deemed habitable 260+ formerly-abandoned homes have been rehabilitated and sold to new residents September 2008 5-year review report issued by EPA 2004 Love Canal removed from National Priorities list
PROPER LANDFILL CLOSURE Plan for eventual site use before landfill is constructed and operated Critical factors to plan for: Settlement Approx. 90% occurs in first 5 years May continue for 25 or more years at a slower rate Foundation characteristics Control of leachate and gas Vegetation Final grade
SITE CLOSURE CHECKLIST Pre-planning Prepare site drainage plan Identify final site topographic plan 3 months before closure Schedule closing date Notify regulatory agencies and site users Closure Place cover over exposed waste Post signs indicating site closure and alt. disposal sites
3 months after closure Complete needed drainage control features Complete gas collection or venting system, leachate containment facilities, and gas or groundwater monitoring devices Place earth cover over landfill Establish vegetative cover
BUILDING ON LANDFILL Major design considerations: Consolidation-time- settlement relationships Load-bearing capacity Placement of sewer, water, electric, and gas utilities Gas-venting techniques
WHERE ARE THEY NOW? HOOKER CHEMICALS & PLASTICS RENAMED - OCCIDENTAL CHEMICAL CORPORATION