I-27_Investigation Trigger Levels 2017-2018

INVESTIGATION TRIGGER LEVELS
AMBIENT MONITORING
Mtrameter
Field
Parameters
Temperature
Investigation Trigger Level (No Precipitation within 24 hours)
>_32° C
pH
<5 or >9
Specific Conductivity
>_730 µS
Turbidity
>_163 NTU
Laboratory
Parameters
Fecal Coliform
>_60,000 cfu/100mL
5-Day Biochemical Oxygen Demand
>_8 mg/L or Overdepletion
Copper (Total or Dissolved)
>_18 µg/L
Zinc (Total or Dissolved)
>_55 µg/L
OUTFALL SCREENING
JIM
Field
Parameters
Parameter
pH
Investigation Trigger Level (No Precipitation
<6.5 or >8.5
Specific Conductivity
>_664 µS
Ammonia
Any detectable concentration
Chlorine
Any detectable concentration
Detergents
Any detectable concentration
Phenols
Any detectable concentration
Copper
Any detectable concentration
Concentrations in Lab Tap Water
.. ..
6,470 µg/L
Lab
Parameters
Calcium
Copper (Total)
112 µg/L
Iron (Total)
88 µg/L
Magnesium (Total)
2,480 µg/L
Manganese (Total)
18 µg/L
Sodium
34,700 µg/L
Zinc (Total)
1,140 µg/L