Which pair correctly matches storage/dispensing setback distances for water sources?

Which pair correctly matches storage/dispensing setback distances for water sources?

• A. Public wells 400 ft; Private wells 75 ft; Surface water 75 ft; Public surface water 400 ft
• B. Public wells 75 ft; Private wells 400 ft; Surface water 75 ft; Public surface water 0 ft
• C. Public wells 75 ft; Private wells 75 ft; Surface water 400 ft; Public surface water 400 ft
• D. Public wells 400 ft; Private wells 400 ft; Surface water 400 ft; Public surface water 400 ft

Answer: (A)

Setbacks from where pesticides are stored or dispensed are designed to protect drinking water and surface water from contamination. The protection level depends on the type of water source: larger buffers are used for sources that serve the public or are more critical to water supply, while smaller buffers apply to private wells or non-public surface water. In this pattern, public wells require the largest distance (400 ft) to guard municipal water supplies. Private wells have a smaller buffer (75 ft) since they serve individual households. Surface water that is not a public water source also has a smaller buffer (75 ft). Public surface water sources, which feed municipal systems, require the large 400 ft setback to minimize contamination risk. The combination matches this approach: 400 ft from public wells, 75 ft from private wells, 75 ft from surface water, and 400 ft from public surface water. Options that assign 0 ft to public surface water or swap the 400 ft and 75 ft distances inappropriately would undermine protection for the higher-risk public water sources.

Setbacks from where pesticides are stored or dispensed are designed to protect drinking water and surface water from contamination. The protection level depends on the type of water source: larger buffers are used for sources that serve the public or are more critical to water supply, while smaller buffers apply to private wells or non-public surface water.

In this pattern, public wells require the largest distance (400 ft) to guard municipal water supplies. Private wells have a smaller buffer (75 ft) since they serve individual households. Surface water that is not a public water source also has a smaller buffer (75 ft). Public surface water sources, which feed municipal systems, require the large 400 ft setback to minimize contamination risk. The combination matches this approach: 400 ft from public wells, 75 ft from private wells, 75 ft from surface water, and 400 ft from public surface water.

Options that assign 0 ft to public surface water or swap the 400 ft and 75 ft distances inappropriately would undermine protection for the higher-risk public water sources.