This сase involves the contamination of groundwater near a Jacksonville, Florida, landfill by hazardous waste from two United States Navy bases. Plaintiffs/appellees/cross-appellants (“plaintiffs”) are current and former residents of a semi-rural neighborhood surrounding the landfill. They sued the United States under the Federal Tort Claims Act (“FTCA”), 28 U.S.C. §§ 2671-2680, for damages resulting from the contamination. After a bench trial, the district court entered judgment against the government. The principal issue on appeal is whether the discretionary function exception to the FTCA bars plaintiffs’ tort claims. We hold that the exception applies, and we reverse.
A. FACTS
Two United States Naval Air Stations operated in the Jacksonville area in the 1960s: NAS Jacksonville (“JAX”) and NAS Cecil Field (“Cecil Field”). Both were engaged chiefly in aircraft maintenance, which generated large quantities of hazardous chemical waste.
Prior to 1964, the Navy disposed of all hazardous and other waste generated at JAX and Cecil Field in on-base pits and landfills. In 1964, the Navy contracted with a private company, Waste Control of Florida, Inc. (“Waste Control”), for off-base waste disposal. The district court explained the Navy’s decision as follows:
First, during the mid-1960s, the Navy developed a policy of contracting work to local businesses in order to contribute to the economies of the communities in which naval facilities were located. Secondly, smoke from the burning garbage interfered with base aviation and caused the bases’ neighbors to complain. Lastly, the bases were running out of available disposal sites, and contracting out refuse collection and disposal services was more cost effective than purchasing additional land for new landfills.
Woodman v. United States,
Pursuant to the contracts, Waste Control emptied waste from the on-base dumpsters into front-loader trucks and transported it to off-basе landfills. Waste Control also emptied the skimmed-off waste from the 2,500-gallon tank at JAX into a tanker truck for off-base disposal. Additionally, Waste Control took some of the 55-gallon drums to off-base landfills. Thus, Waste Control handled waste from all three of the Navy’s avenues of disposal.
From 1964 to 1968, Waste Control disposed of Navy waste at landfills located some distance from the Navy bases. In April of 1968, Waste Control obtained an exclusive license to open and operate a landfill near Hipps Road in southwest Jacksonville, a more convenient location to the Navy bases. The Navy did not participate in selecting the site or in negotiating the license. The Hipps Road landfill occupied seven acres of a cypress swamp. Single family residences surrounded the landfill in all directions. At that time, the neighborhood was not connected to the Jacksonville water system. Residents obtained water from wells that tapped into a stream flowing beneath the swamp and landfill. Residents also used two nearby ponds for swimming and fishing. Waste Control took all оf its Navy waste to the Hipps Road landfill from April 1968 until the landfill reached capacity and closed in late 1969. Waste Control dumped the waste into unlined trenches at the site. Because the water table in the area was only four to six feet, the trenches filled with groundwater. The Navy was not involved in and did not supervise Waste Control’s disposal methods.
B. PROCEDURAL HISTORY
These cases were brought in 1987 in a single action by 171 individuals comprising 53 families. Plaintiffs sued the government under the FTCA and CERCLA. Plaintiffs sued Waste Control and two affiliated companies under CERCLA and Florida common law. In their tort claims, plaintiffs sought damages fоr personal injury, property damage, diminished quality of life, and future medical monitoring expenses. In 1990, for administrative purposes, each family filed an additional, separate complaint, for a total of 53 civil actions. In 1993, the Woodman family amended their complaint to add a claim for the wrongful death of Mrs. Woodman, who was diagnosed with and died of cancer in December 1992, during the trial of this case.
In an important pretrial order, the district court denied the government’s motion for summary judgment and granted plaintiffs’ motion for a declaration that the discretionary function exception did not shield the government from liability under the FTCA. See Woodman,
The district court
The district court ruled against the United States on both the CERCLA and FTCA claims. The court found that the Hipps Road landfill was not a proper site for disposal оf hazardous chemical waste because of the proximity of residential wells and the closeness of the groundwater to the surface. Further, the court found that Waste Control failed to follow then-accepted waste disposal practices and local ordinances requiring that trenches be lined with limestone to prevent leaching. As a result, hazardous chemicals migrated into the groundwater and contaminated plaintiffs’ wells. The district court found that the Navy acted negligently by (1) placing flammable solvents into the on-base dumpsters serviced by Waste Control, in violation of Navy policy and its contract with Waste Control; and (2) failing to supervise Waste Control’s disposal of the waste from JAX and Cecil Field, in violation of its nondelegable duty under Florida law to monitor the activities of independent contractors
The district court awarded a variety of tort damages. First, the court found that those plaintiffs who were exposed to the contamination
The total of all prevailing plaintiffs’ awards against the United States was $3,648,436.80. The district court offset each prevailing plaintiffs CERCLA and FTCA damages by his or her share of the settlement with the private contractors. As a result of this offset, four plaintiffs ultimately received damage awards in a total amount of $1,394,012.01. Following the entry of final judgment, the United States perfected this appeal of the FTCA judgments. The United States does not challenge the CERCLA judgments. Plaintiffs cross-appealed an issue related to tort damages which we do not reach because we conclude that the United States is not liable under the FTCA.
II. STANDARD OF REVIEW
We review the district court’s construction and application of the FTCA de novo. Hughes v. United States,
III. DISCUSSION
The FTCA is a limited waiver of the United States’ sovereign immunity. Powers,
We aрply a two-step test to determine whether the discretionary function exception applies in a particular ease. First, we determine whether the challenged conduct involves an element of judgment or choice. Berkovitz v. United States,
A. DISTRICT COURT RULINGS
In its 1991 pretrial order, the district court ruled that the discretionary function exception did not completely bar plaintiffs’ FTCA claims. The court began its analysis as follows:
All parties agree that the Navy’s decision to use contractors to dispose of its waste falls within the discretionary function exception to the FTCA. Furthermore, all parties agree that the decision as to what to delegate to the contractor in the waste, disposal contracts also falls within the discretionary function exception. Thus, what the court must determine is whether the Navy’s internal regulations and policies or the waste disposal contracts contained mandatory duties which the Navy failed to perform.
Woodman,
The government raised the discretionary function excеption defense again at trial. In its findings of fact and conclusions of law, the district court again rejected the defense, but for a different reason. The district court ruled that the Navy violated a nondelegable — and therefore non-discretionary — federal duty to dispose safely of its hazardous waste. The court relied upon Dickerson, Inc. v. United States,
The district court ruled that, as in Dickerson, federal regulations and policies mandated that the Navy safely dispose of its hazardous chemical waste. CERCLA was not on the books in 1968. However, the .district court pointed to: (1) a 1946 Manual on the Collection and Disposal of Refuse issued by the War Department which stated, “Do not select [waste disposal] sites which have surface or subsurface drainage to the water supply.”; (2) a general safety manual issued by the Corps of Engineers in 1941 and 1967 — and explicitly incorporated into the Navy’s contracts with Waste Control- — which
B. APPLICABILITY OF DISCRETIONARY FUNCTION EXCEPTION
The government contends that the discretionary function exception shields it from liability under Florida’s strict liability scheme and from liability for negligent failure to supervise Waste Control. The government argues that the district court ruled correctly that the exception covered the Navy’s decision to contract out the safe disposal of its hazardous waste. However, the government argues that the district court’s second ruling on the issue — -that the Navy remained bound by mandatory federal directives to ensure thаt disposal of its waste did not result in groundwater pollution — was incorrect. The government maintains that no federal statute, regulation, or policy prevented the Navy from delegating its responsibility for safe waste disposal. We agree.
The law is clear that the government may delegate its safety responsibilities to independent contractors in the absence of federal laws or policies restricting it from doing so. See, e.g., Feyers v. United States,
Moreover, as the district court noted, the Navy’s decision to delegate was grounded in policy concerns. Woodman,
Nor is the government liable for negligent failure to supervise Waste Control. The discretionary function exception encompasses government decisions about how and how much to supervise the safety procedures of independent contractors. Varig Airlines,
C. LIABILITY FOR FAILURE TO SEGREGATE WASTE
Although the discretionary function exception shields the government from liability under theories of strict liability or negligent failure to supervise, the exception does not apply to the Navy’s violation of its mandatory duty not to place flammable liquid waste in the on-base dumpsters. The government concedes that under its contracts with Waste Control, the Navy had a mandatory duty to segregate waste and that the Navy violated that duty by placing flammable materials in the dumpsters. Therefore, the discretionary function exception does not insulate the government from liability under the FTCA for damages that resulted from the Navy’s failure to segregate waste.
The government contends, however, that violation of the duty to segregate waste is not a basis for tort liability because the Navy’s failure tо segregate did not cause the pollution. Rather than placing some of its flammable waste into the dumpsters, the Navy could have dumped all of its flammable waste into the on-base sewer without violating its contract with Waste Control. The treatment system then would have processed the waste so that it was no longer flammable but still toxic. The waste would have ended up in the 2,500-gallon tank at JAX. The district court found that Waste Control transported all Navy waste, including tank waste, to the Hipps Road landfill. Had the Navy dumped all flammable waste into the sewer, it would have been in compliance with its contract with Waste Control because the contract provided only that Waste Control would not handle flammable waste. The contract did not restrict the Navy’s disposal of nonflammable hazardous waste. Thus, there was no nexus between the Navy’s breach of its duty to segregate and the destination of its waste. Put another way, the Navy’s failure to separate flammable waste from other waste (hazardous and not) did not cause the contamination of plaintiffs’ wells.
Plaintiffs fail to refute this argument, and we deem it persuasive. The district court did not reach the causation question because it assumed the discretionary function exception did not apply. However, the discretionary function exception forecloses all tort claims against the Navy except those related to the Navy’s negligent failure to segregate waste. Causation is an element of a negligence claim under Florida common law. See generally McCain v. Florida Power Corp.,
IV. CONCLUSION
The Navy exercised its discretion to delegate responsibility for safe disposal of its hazardous waste to a private contractor.
We also hold that the discretionary function exception does not foreclose government liability for the Navy’s negligent failure to obey its mandatory contractuаl duty to segregate flammable waste. The evidence adduced at trial, however, shows that plaintiffs’ negligence claim based upon that breach must fail because a critical element of negligence under Florida law — ^-causation—is missing. We therefore reverse the judgment of the district court holding the government liable under the FTCA and remand this case to the district court with directions to enter judgment for the United States on the FTCA claims.
REVERSED and REMANDED.
Notes
. This hazardous waste included paint, paint strippers, solvents, petroleum, lube oils, grease, degrеasers, and cleaning solutions containing phenols, benzene, methylene chloride, vinyl chloride, and other chemicals.
. Then Chief Judge Susan Black handled the case initially. Prior to trial, the case was reassigned to Senior Judge Prentice Marshall of the Northern District of Illinois.
. These plaintiffs claimed they suffered a variety of health problems, such as headaches, rashes, and diarrhea, as a result of exposure to the contaminated water.
. The court granted judgment against several dozen plaintiffs who did not reside within the area of contamination. Those plaintiffs have not appealed.
. We agree with the reasoning in the district court's pretrial order. As discussed infra, we conclude, as did the district court, that the discretionary function exception does not apply to the i\[avy's failure to segregate flammable wastes. The evidence presented at trial, however, showed that there was no causal link between the Navy's failure to segregate and the contamination of plaintiffs’ wells. The district court did not have the benefit of this latter evidence at the time it issued its pretrial order.
. Polychlorinated biphenyls, long recognized to cause cancer.
