All individuals who enter NEIWPCC offices during business hours are required to be fully vaccinated.


Interstitial Tank Tightness Test Method

Click on the vendors specific EQUIPMENT NAME to go to that Listing.

Vendor Equipment Name Leak Rate / Threshold / Max Tank Capacity
Containment Solutions Inc. (originally listed as Fluid Containment and O/C Tanks) Hydrostatic Precision Tank Test for DWT-Type II Tanks 0.1 gph/0.05 gph without dispensing/30,000 gallons
0.1gph/0.07 gph with dispensing/30,000 gallons
Leak Detection Technologies, Inc. MCleak Enhanced Interstice Test for Doubled-Walled Tanks, UDCs, Sumps and Spill Buckets Leak Rate- 0.1 gph/ 0.005 gph w/ 72 hour wait before testing. 1,500 gallon interstitial capacity. Leak Threshold – 0.0017 gph h
Steel Tank Institute Permatank Precision Interstitial Vacuum Monitor 0.1 gph/0.01 gph/50,000 gallons
Permatank Interstitial Vacuum Monitor Liquid Leaks 0.1gph/ A tank system should not be declared tight when the vacuum decreases (pressure increases) 5 inches or more of mercury over the test period specified for each tank size./20,000 gallons
Xerxes Corp. Xerxes Trucheck Hydrostatic Monitoring System 0.1 gph/0.05 gph/30,000 gallons