News Headlines
From news.glin.net:

City of Waukesha revises Great Lakes water plan
Milwaukee Journal Sentinel (4/28)
The City of Waukesha, Wis., would receive up to an average of 8.7 million gallons a day of Lake Michigan water by midcentury — down 13.86% from its earlier request — to serve a smaller area proposed by Great Lakes officials reviewing the city's plan for lake water.

Reacting to Flint crisis, EPA launches U.S. drinking water study
Detroit Free Press (4/26)
The public health crisis caused by high lead levels in Flint’s water and the toxic algae blooms in Lake Erie in recent years are among the threats being cited by federal environmental officials who called for a comprehensive look at how to better protect the nation’s drinking water

Great Lakes leaders to scrutinize Waukesha water diversion bid
Milwaukee Journal Sentinel (4/21)
A regional regulating group will meet today and tomorrow in Chicago, Ill., to consider a request for a diversion of water from Lake Michigan by Waukesha, Wis.

Tougher testing, new pipes: Snyder’s proposals for new lead standards
Great Lakes Echo (4/20)
In Michigan, Flint is slowly making progress on replacing lead service lines, and the city is coating the pipes with anti-corrosives to prevent more lead from leaching into the water.

COMMENTARY: Water is Central New York's greatest economic development asset
The Syracuse Post-Standard (4/18)
Central New York was a water-based economy in 1825 when the Erie Canal drove our economic growth. This legacy will drive our future. Let's build together.

Thirsty cities begin to eye water from the Great Lakes
Star Tribune (4/16)
Nearly a decade ago, eight governors shook hands on an extraordinary agreement to erect a legal wall around the largest source of fresh water on earth — the Great Lakes. Now they face the first test.

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Great Lakes Commission

General Definitions & Abbreviations

bgd: billion gallons per day

bld: billion liters per day

consumptive use: that portion of water withdrawn or withheld from the Great Lakes basin and assumed to be lost or otherwise not returned to the Great Lakes basin due to evapotranspiration, incorporation into products, or other processes (Agreement Article 103; Compact Section 1.2).

Great Lakes surface water (GLSW): the Great Lakes, their connecting channels (the St. Clair River, the Detroit River, the Niagara River and the St. Marys River), and the St. Lawrence River

groundwater (GW): all subsurface water

diversion: a transfer of Water from the basin into another watershed, or from the watershed of one of the Great Lakes into that of another by any means of transfer, including but not limited to a pipeline, canal, tunnel, aqueduct, channel, modification of the direction of a watercourse, a tanker ship, tanker truck or rail tanker but does not apply to water that is used in the basin or Great Lakes watershed to manufacture or produce a product that is then transferred out of the basin or watershed (Agreement Article 103; Compact Section 1.2)

intrabasin transfer: a transfer of water from the watershed of one of the Great Lakes into the watershed of another Great Lake (Agreement Article 103; Compact Section 1.2)

level of accuracy: the quality of data based on percentage of total volume and rated as 1) measured; 2) partially measured or 3) estimated,

level of aggregation: the quality of data based on percentage of total volume and rated as 1) originating from site-specific sources or 2) originating from higher level aggregate sources, such as county or census databases

mgd: million gallons per day

mld: million liters per day

other surface water (OSW): tributary streams, lakes, ponds, and reservoirs within the Great Lakes basin

threshold facility: a facility withdrawing in excess of the Great Lakes-St. Lawrence Compact/Agreement uniform trigger level of 100,000 U.S. gallons/day (380,000 liters/day) averaged over a 30-day period. A threshold facility is determined by the total withdrawal (or consumption) of all sources combined (Great Lakes-St. Lawrence surface water, other surface water, and groundwater) rather than a single source.

tgd: trillion gallons per day

tld: trillion liters per day

withdrawal amount: the taking of Water from surface Water or groundwater (Agreement Article 103, Compact Section 1.2).