PRE-SOLICITATION NOTICE - MRG-RIVER EYES MONITORING. This pre-solicitation notice is issued solely for informational and planning purposes and is not a Request for Proposal (RFP). THERE IS NO SOLICITA... PRE-SOLICITATION NOTICE - MRG-RIVER EYES MONITORING. This pre-solicitation notice is issued solely for informational and planning purposes and is not a Request for Proposal (RFP). THERE IS NO SOLICITATION AT THIS TIME. The submission of any information in response to this pre-solicitation notice is purely voluntary. When a solicitation is issued, it will be posted on https://www.sam.gov website