1. Anything that disrupts
WATER CONTAMINANTS
Anything that disrupts
natural balances
&
REMEDIES
5/8/2018

2. ALGAE (Green & Blue/Green)
METALS & MINERALS
ALGAE (Green & Blue/Green)
CHEMICALS
SILT & VEGETATION
TRUCKS & TRAINS
Others
5/8/2018

3. #4 Neutralize contaminant
REMEDIES
#1 Avoid contamination
#2 Limit contamination
#3 Remove contaminant
& OR
#4 Neutralize contaminant
5/8/2018

4. Cr VI Compressor Stations
What happens when?
Avoidance didn’t happen?
Limits didn’t work?
Removal wasn’t feasible?
Neutralization didn’t work?
Cr VI
Compressor Stations
5/8/2018

5. PG & E Natural Gas Pipeline California
5/8/2018

6. Annual Precipitation 110 mm Average flow-by 0.17 million m3/day
Chromate 10,000 lbs over 12 years
Cr VI 4,500 lbs over 12 years
PG & E
Hinkley
California
Annual Precipitation 110 mm
Average flow-by 0.17 million m3/day
5/8/2018

7. How is this related to SALT?
Both are contaminants.
The consequences of both are known.
Both have health related issues.
Both are water transportable through soils.
Neither have easy chemical remedies.
Regulators didn’t address Cr VI.
Regulators are resisting addressing SALT.
Turn-around consequences are massive.
How long does it take?
5/8/2018

8. 12 years (375 lbs/year) About 0.2 % of Cr III converts to Cr VI
April 2015
12 years
5/8/2018

9. What about Lake Ramsey & SALT?
Avoidance didn’t happen
Contamination is already present and increasing
Limits didn’t work
Still possible with some safety compromise
Removal wasn’t feasible
Possible at huge cost
Neutralization didn’t work
Not chemically feasible
5/8/2018