Carnation Waste Pond No 7 is a privately owned offstream water storage structure located in Grant County, Washington. Constructed in 1979, this Earth-type dam stands at a hydraulic height of 16 feet with a structural height of 12 feet and a length of 1930 feet. It has a normal storage capacity of 71 acre-feet and a maximum storage of 99 acre-feet, serving as a critical resource for the area's water supply and management.

Managed by the Washington Department of Ecology, Carnation Waste Pond No 7 is subject to state regulation, inspection, and enforcement to ensure its safety and compliance with environmental standards. With a low hazard potential and a condition assessment of "Not Rated," this dam plays a vital role in water resource management in the region. While lacking detailed information on emergency preparedness and risk assessment, its purpose and design highlight the importance of sustainable water infrastructure for both human and environmental well-being.

As part of the Seattle District's water management system, Carnation Waste Pond No 7 contributes to the overall water quality and availability in the area. With its stone core and rock and soil foundations, this structure exemplifies the intersection of engineering and environmental stewardship in maintaining a balance between human needs and ecological sustainability. For water resource and climate enthusiasts, understanding the intricacies of such water management infrastructure sheds light on the complexities and challenges of ensuring a resilient and sustainable water future.