Greenville Reservoir Number Six is a small 45-acre impoundment in Hunt County, Texas. Only boats used for fishing purposes are permitted on the reservoir, and these must comply with specific regulations. Boats must be flat-bottom or semi-V style, at least 12 feet long, 40 inches wide, and have sides at least 16 inches high. Only electric motors are allowed, and all boats must be approved by the reservoir supervisor before use.

The reservoir is open for boating from sunrise to sunset. No pleasure riding or hunting is permitted - boats may only be used for fishing or emergency operations. When not in use, boats must be moored at designated locations along the bank. Operators must be at least 16 years old unless exempted under state law, and must carry proper documentation including boat registration.

Swimming and wading are prohibited except for wade fishing in hip boots where water cannot contact the body. The reservoir serves as part of Greenville's water system, so there are strict regulations to protect water quality. No cleaning of fish is allowed on or near the reservoir, and care must be taken to prevent any contamination of the water.

The reservoir is part of a system of several small impoundments in the area, including Reservoir Numbers 4 and 5 which are nearby. Lake Tawakoni State Park provides additional recreational opportunities in the vicinity. Water temperatures typically range from the high 30s°F in winter to warmer in summer, following the pattern of air temperatures that average between 38-57°F during cooler months.

Before planning a visit, be aware that this is primarily a fishing reservoir with significant restrictions on boat use and water access. All boats and activities are subject to supervision and must strictly comply with city ordinances designed to protect the drinking water supply.