OPINION OF THE COURT
Titone, J.
The Central Pine Barrens is an area of Long Island that once encompassed approximately 250,000 acres in central Suffolk County but has now been reduced to some 100,000 acres of relatively undeveloped land. The Pine Barrens is an indispensable component of the aquifer system that is the sole natural source of drinking water for over two and a half million inhabitants of Long Island. Indeed, because of its critical ecological significance, the Pine Barrens has been the subject of protective legislation at all levels of government. The specific issue presented here is whether the State Environmental Quality Review Act (SEQRA) and its accompanying regulatory scheme should be construed to require the preparation of a cumulative impact statement in connection with the more than 200 development projects that are currently proposed for the Central Pine Barrens region. Contrary to the holding of the Appellate Division, we conclude that the statutory and regulatory criteria for mandatory cumulative impact statements cannot, and should not, be stretched to cover this unique problem. Accordingly, there should be a reversal.
L
The sole natural source of drinking water for much of Long Island is its aquifer system, which is comprised of three subsoil water-bearing layers known as the Upper Glacial Aquifer, the Magothy Aquifer and Lloyd Sands. The system is regularly replenished by precipitation, which infiltrates the land surface in the Pine Barrens region, enters the system through the Upper Glacial Aquifer and percolates downward to the lower layers through a hydrological phenomenon known as "deep flow recharge.” Because the Pine Barrens’ soils are highly porous, the region provides an excellent vessel [509] for the storage and distribution of precipitation. Further, the precipitation that enters the system through the soil in the Pine Barrens radiates out to the north, south and east, feeding the entire aquifer and diluting the contaminants that may have entered the system from other sources.
Unfortunately, the same characteristics that make the Central Pine Barrens an ideal source of recharge also make it especially vulnerable to the risk of pollution, since its permeable soil is not readily capable of filtering or degrading contaminants. As is indicated by at least one study, once the deep recharge system in this area becomes contaminated, it would take centuries to flush it sufficiently to return it to clean groundwater quality. Thus, as a practical matter, contamination would be irreversible. Moreover, because precipitant entering through the Pine Barrens region radiates outward into the rest of the aquifer system, any contamination originating in this area would have serious consequences for the entire Long Island groundwater supply. It is thus apparent that the protection of the Pine Barrens region from sources of pollution is vital to the health of Long Island’s human population.
The Pine Barrens also has unique ecological significance because of its unusually high concentration of species that have officially been classified as endangered, rare or subject to the protection of Federal law (see, 16 USC § 1531 et seq.; see also, ECL 11-0535; 6 NYCRR part 182). The Pine Barrens contains over 300 species of vertebrate animals, 1,000 species of plants and 10,000 species of insects and other invertebrate animals, many of them rare and restricted to Pine Barrens or other similar areas. Among the more important species inhabiting the Pine Barrens are the tiger salamander, the red-shouldered hawk, the northern harrier and the mud turtle (see, 6 NYCRR 182.6). The Pine Barrens’ singular geological and meteorological history, as well as its highly unusual soil, vegetation and water levels, make it particularly hospitable to a wide variety of life forms whose survival could well be threatened by development. The need for caution in this area is especially acute because development in one part of the region could have unforeseen consequences in another, as migratory routes are disrupted, food supplies are destroyed, alien species are given berth to develop and environmentally crucial wetlands are permitted to dry up. Furthermore, development may encourage extinguishment of the ecologically necessary wildfires that periodically burn through the region.
[510] II
In recognition of the ecological importance and fragility of the Long Island Pine Barrens, laws and policies have been adopted at all government levels to protect the area from unbridled development. In 1978, the Federal Environmental Protection Agency designated the underlying Long Island aquifer a "sole source aquifer” after noting that the aquifer system is the principal source of drinking water for Nassau and Suffolk Counties and is highly vulnerable to contamination (43 Fed Reg 26611 [June 21, 1978]; see, 42 USC § 300h-3 [e]). Additionally, pursuant to the Federal Water Pollution Control Act (33 USC § 1288), the Long Island Regional Planning Board released a comprehensive waste treatment plan (the 208 study), which mapped Hydrogeologic Zone III as an area virtually coextensive with the Central Pine Barrens and declared that it should be protected from contamination through land use restrictions and other controls.
In 1974, the New York State Legislature adopted the first in what was to become a series of enactments designed to protect the Pine Barrens by amending the Environmental Conservation and Public Health Laws to provide for special review of business, commercial and industrial uses in Suffolk County with a view toward preserving the purity of the groundwater (L 1974, ch 802). Ten years later, the Legislature adopted the Landfill Law, which prohibits the placement of new landfill sites in Zone III and most of the Central Pine Barrens (L 1983, ch 299; see also, Matter of Town of Islip v Cuomo, 64 NY2d 50). The same Legislature authorized the Department of Environmental Conservation (DEC) to prohibit land uses involving hazardous wastes in certain portions of Long Island because of the "direct relationship [that] exists between land use activities and the quality of the groundwater reservoir beneath” (L 1983, ch 951, § 1). In 1984, a State-wide framework for water resource planning was established and, pursuant to the new statute, the DEC issued a report, the Long Island Ground Water Management Plan, which singled out the Long Island Pine Barrens for protection (L 1984, ch 509; see, ECL art 15).
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OPINION OF THE COURT
Titone, J.
The Central Pine Barrens is an area of Long Island that once encompassed approximately 250,000 acres in central Suffolk County but has now been reduced to some 100,000 acres of relatively undeveloped land. The Pine Barrens is an indispensable component of the aquifer system that is the sole natural source of drinking water for over two and a half million inhabitants of Long Island. Indeed, because of its critical ecological significance, the Pine Barrens has been the subject of protective legislation at all levels of government. The specific issue presented here is whether the State Environmental Quality Review Act (SEQRA) and its accompanying regulatory scheme should be construed to require the preparation of a cumulative impact statement in connection with the more than 200 development projects that are currently proposed for the Central Pine Barrens region. Contrary to the holding of the Appellate Division, we conclude that the statutory and regulatory criteria for mandatory cumulative impact statements cannot, and should not, be stretched to cover this unique problem. Accordingly, there should be a reversal.
L
The sole natural source of drinking water for much of Long Island is its aquifer system, which is comprised of three subsoil water-bearing layers known as the Upper Glacial Aquifer, the Magothy Aquifer and Lloyd Sands. The system is regularly replenished by precipitation, which infiltrates the land surface in the Pine Barrens region, enters the system through the Upper Glacial Aquifer and percolates downward to the lower layers through a hydrological phenomenon known as "deep flow recharge.” Because the Pine Barrens’ soils are highly porous, the region provides an excellent vessel [509] for the storage and distribution of precipitation. Further, the precipitation that enters the system through the soil in the Pine Barrens radiates out to the north, south and east, feeding the entire aquifer and diluting the contaminants that may have entered the system from other sources.
Unfortunately, the same characteristics that make the Central Pine Barrens an ideal source of recharge also make it especially vulnerable to the risk of pollution, since its permeable soil is not readily capable of filtering or degrading contaminants. As is indicated by at least one study, once the deep recharge system in this area becomes contaminated, it would take centuries to flush it sufficiently to return it to clean groundwater quality. Thus, as a practical matter, contamination would be irreversible. Moreover, because precipitant entering through the Pine Barrens region radiates outward into the rest of the aquifer system, any contamination originating in this area would have serious consequences for the entire Long Island groundwater supply. It is thus apparent that the protection of the Pine Barrens region from sources of pollution is vital to the health of Long Island’s human population.
The Pine Barrens also has unique ecological significance because of its unusually high concentration of species that have officially been classified as endangered, rare or subject to the protection of Federal law (see, 16 USC § 1531 et seq.; see also, ECL 11-0535; 6 NYCRR part 182). The Pine Barrens contains over 300 species of vertebrate animals, 1,000 species of plants and 10,000 species of insects and other invertebrate animals, many of them rare and restricted to Pine Barrens or other similar areas. Among the more important species inhabiting the Pine Barrens are the tiger salamander, the red-shouldered hawk, the northern harrier and the mud turtle (see, 6 NYCRR 182.6). The Pine Barrens’ singular geological and meteorological history, as well as its highly unusual soil, vegetation and water levels, make it particularly hospitable to a wide variety of life forms whose survival could well be threatened by development. The need for caution in this area is especially acute because development in one part of the region could have unforeseen consequences in another, as migratory routes are disrupted, food supplies are destroyed, alien species are given berth to develop and environmentally crucial wetlands are permitted to dry up. Furthermore, development may encourage extinguishment of the ecologically necessary wildfires that periodically burn through the region.
[510] II
In recognition of the ecological importance and fragility of the Long Island Pine Barrens, laws and policies have been adopted at all government levels to protect the area from unbridled development. In 1978, the Federal Environmental Protection Agency designated the underlying Long Island aquifer a "sole source aquifer” after noting that the aquifer system is the principal source of drinking water for Nassau and Suffolk Counties and is highly vulnerable to contamination (43 Fed Reg 26611 [June 21, 1978]; see, 42 USC § 300h-3 [e]). Additionally, pursuant to the Federal Water Pollution Control Act (33 USC § 1288), the Long Island Regional Planning Board released a comprehensive waste treatment plan (the 208 study), which mapped Hydrogeologic Zone III as an area virtually coextensive with the Central Pine Barrens and declared that it should be protected from contamination through land use restrictions and other controls.
In 1974, the New York State Legislature adopted the first in what was to become a series of enactments designed to protect the Pine Barrens by amending the Environmental Conservation and Public Health Laws to provide for special review of business, commercial and industrial uses in Suffolk County with a view toward preserving the purity of the groundwater (L 1974, ch 802). Ten years later, the Legislature adopted the Landfill Law, which prohibits the placement of new landfill sites in Zone III and most of the Central Pine Barrens (L 1983, ch 299; see also, Matter of Town of Islip v Cuomo, 64 NY2d 50). The same Legislature authorized the Department of Environmental Conservation (DEC) to prohibit land uses involving hazardous wastes in certain portions of Long Island because of the "direct relationship [that] exists between land use activities and the quality of the groundwater reservoir beneath” (L 1983, ch 951, § 1). In 1984, a State-wide framework for water resource planning was established and, pursuant to the new statute, the DEC issued a report, the Long Island Ground Water Management Plan, which singled out the Long Island Pine Barrens for protection (L 1984, ch 509; see, ECL art 15).
The centerpiece of the State legislation affecting the Pine Barrens is the Sole Source Aquifer Special Groundwater Protection Areas Law (L 1987, ch 628), which is codified at ECL article 55 and specifically includes the Central Pine Barrens in the Suffolk County Towns of Brookhaven, Riverhead and Southampton as one of the nine listed Special Groundwater [511] Protection Areas (see, ECL 55-0113 [1] [g]). The statute contemplates the creation of a comprehensive management plan to govern development within the designated areas (see, ECL 55-0115). The goals underlying article 55 have also been reflected in subsequent State legislation, including the Long Island Pine Barrens Maritime Reserve Act (L 1990, ch 814, codified at ECL art 57), several amendments to strengthen both article 55 and the Maritime Reserve Act (L 1991, ch 238; L 1992, ch 271) and, finally, an amendment to SEQRA requiring every Environmental Impact Statement concerning a project affecting the Pine Barrens to discuss the "effects of any proposed action on, and its consistency with, the comprehensive management plan” (L 1990, ch 219, adding ECL 8-0109 [2] [i]; [9]).
At the local level, the Suffolk County Legislature has adopted laws encouraging towns and villages within the Pine Barrens Zone to develop "unified policies” with regard to land use within that zone (Local Laws, 1984, No. 7 of County of Suffolk), designating the Central Pine Barrens as a Critical Environmental Area pursuant to SEQRA (Local Laws, 1987, No. 24; see, 6 NYCRR 617.4 [former (j)] [now subd (h)]), creating a Pine Barrens Wilderness and a Water Protection Preserve (Local Laws, 1987, No. 40) and establishing funding mechanisms for projects to protect the drinking water (Local Laws, 1988, No. 35). Specialized land use management plans to protect the drinking supply have also been advocated in local legislation adopted in the Towns of Southampton (Local Laws, 1984, No. 1), Brookhaven (Resolution No. 10, adopted June 20, 1989; see also, Brookhaven Town Code ch 80) and Riverhead (Zoning Code art XXXII).
III
At issue in this appeal are some 224 discrete proposed development projects that are scattered throughout the Central Pine Barrens area in the Towns of Brookhaven, River-head and Southampton. Some of these projects have already received local approval, while others are still awaiting review.
Petitioners, consisting of an incorporated society and several individuals interested in the preservation of the Pine Barrens, commenced the present proceeding to invalidate the approvals that have already been given and to enjoin respondents from taking any further action in relation to the pending proposals without first complying with SEQRA. Specifically, petitioners claim that SEQRA has been and is being violated here be[512] cause no consideration has been given to the cumulative environmental impact of all pending development projects in the Central Pine Barrens area.