Greater New Haven Water Pollution Control Authority

As part of our Long Term Control Plan, the GNHWPCA has constructed a 5 million gallon underground storage tank for capturing combined storm/sewer overflows. During heavy rain events the Boulevard sewer interceptor is overwhelmed and overflow structures were built to relieve this situation.

Now, instead of this overflow going into the West River, it is diverted into the Truman Tank where it is stored until the system has capacity to handle this additional flow. This tank was constructed under the parking lot for the Truman School.