DQM considers any floating plant which transports dredge material to be a scow. They can be mechanically or hydraulically offloaded or can self dispose material; they can include flat deck or sealed barges as well as split hull or bottom dumping scows. DQM recognizes two levels of instrumentation, referred to as profiles. In addition to location tracking, the profiles include: Monitoring – requires collection of draft and displacement values to assist in identifying when loading/unloading is occurring and potential leakage. Ullage – additionally requires the collection of bin ullage and volume measurements which can be used to validate draft data and estimate quantities

Scow Specifications – Version 8/04/23

Scow Certifications \ Data Quality Checks


Scow Data Transmission Requirements

Scow data is collected on the scow and transmitted via email to the DQM Center using SOAP protocols. Contractors/system providers must contact the DQM Center to receive instructions to securely transmit the data.

If data needs to be corrected, as long as the time stamps exactly match previously submitted data, it can be resent as if it were original data,  as long as it is not over six weeks old. If times need to be readjusted, notify the DQM Center so that the stored data can be backed out and corrected data can be manually entered.

DQM Links