Tag: Recycle

First Looks: The LADWP 2015 Draft UWMP – Hiding the Shortage

After spending a few weeks paging through the just released LADWP 2015 Draft Urban Water Management Plan, my immediate conclusion is that the plan is a thinly disguised effort to hide the city’s low water supply levels from the planning process to protect development.This draft, like past UWMP’s, continues to project levels of water in all supply categories that […]

Purple Pipe Doesn’t Live Up to Hype

LADWP water plans are generally more about perception than results and ‘Purple Pipe’ is certainly the poster child proving that.Purple pipe is used to distribute non-potable recycled water and is often presented as one of the departments cornerstone resources to meeting the city’s water supply demand since it frees up potable water that would have been used […]

The WSA – Bringing Imaginary Water to L.A.’s Big Projects

In a previous article I wrote that The Los Angeles Department of Water and Power was confronted with two conflicting demands that dates back to 1990. The department’s conflict is between providing enough water to city residents from a rapidly shrinking water supply that once averaged 680,000 Af/y and is now just over 610,000 Af/y […]

The Paper Water Years – LA’s 1995 – 2000 Water Plans

This is Part IV in a series describing L.A.’s water supply problems and the policies that produced it. In Part III we saw how the city sought to maintain the 1985 baseline of ~175 gallons per capita daily in the 1990 UWMP while population estimates increased. As a result we saw the projected supply in the plan […]

Dissecting L.A’s Paper Water – Recycled

One prominent member of the City of Los Angeles’s ‘paper water’ portfolio is recycled water. Like L.A.’s groundwater supply, its Urban Water Management Plans between 1990 and 2005 had projected rapidly growing recycled water supplies that would never be realized. The chart at the right plots the huge gap between the actual recycled water supply the city had […]

L.A.’s First Water Plans – The 1985 & 1990 UWMP

In 1983 the State of California passed the Urban Water Management Plan Act that required water suppliers to provide a water plan every five years. The Urban Water Management Plan (UWMP) is rich in information as it identifies the agencies sources of water (aqueduct, groundwater, imported), amounts of water available from these sources, methods of conveyance, current and future water uses, […]