| Award | EC-LC22A: REHABILITATION OF SANITARY, COMBINED, AND STORM SEWERS BY USING DEP APPROVED LINING METHOD IN VARIOUS LOCATIONS CITYWIDE | Design and Construction | NATIONAL WATER MAIN CLEANING COMPANY | $9.5M | Competitive Sealed Bids | Oct 12, 2021 | 85021B0148 |
| Award | REHABILITATION OF SANITARY, COMBINED, AND STORM SEWERS BY USING DEP APPROVED LINING METHOD IN VARIOUS LOCATIONS CITYWIDE | Design and Construction | NATIONAL WATER MAIN CLEANING COMPANY | $9.5M | Competitive Sealed Bids | Oct 4, 2021 | 85021B0148 |
| Award | TELEVISION INSPECTION AND DIGITAL AUDIO-VISUAL RECORDING OF SEWERS AT VARIOUS LOCATIONS-CITYWIDE | Design and Construction | National Water Main cleaning Company | $2.2M | Competitive Sealed Bids | Nov 7, 2018 | 85018B0084 |
| Award | TELEVISION INSPECTION AND DIGITAL AUDIO-VISUAL RECORDING OF SEWERS AT VARIOUS LOCATIONS-CITYWIDE | Design and Construction | National Water Main cleaning Company | $2.2M | Competitive Sealed Bids | Jul 16, 2018 | 85018B0084 |
| Award | CLEANING, TELEVISION INSPECTION AND DIGITAL AUDIO-VISUAL RECORDING OF SEWERS AT UNKNOWN LOCATIONS IN THE CITY SEWER SYSTEM ON AN AS NEEDED BASIS - CITYWIDE | Design and Construction | National Water Main Cleaning Company, | $1.3M | Competitive Sealed Bids | Mar 10, 2014 | 85014B0048001 |
| Award | CLEANING, TELEVISION INSPECTION AND DIGITAL AUDIO-VISUAL RECORDING OF SEWERS AT UNKNOWN LOCATIONS ON AS NEEDED BASIS- CITYWIDE | Design and Construction | National Water Main cleaning Company | $1.4M | Competitive Sealed Bids | Feb 7, 2011 | 8502010SE0041C |
| Award | CLEANING, TV INSPECTION AND DIGITAL AUDIO-VISUAL RECORDING OF SEWERS-CITYWIDE | Design and Construction | National Water Main cleaning Company | $1.4M | Competitive Sealed Bids | Dec 4, 2009 | 8502009SE0032C |
| Award | CLEANING, TELEVISION INSPECTION AND DIGITAL AUDIO-VISUAL RECORDING OF SEWERS AT UNKNOWN LOCATIONS IN THE CITY SEWER SYSTEM ON AN AS NEEDED BASIS | Design and Construction | National Water Main cleaning Company | $554K | Competitive Sealed Bids | Oct 4, 2006 | 8502006SE0038C |
| Award | CLEANING, TELEVISON, INSPECTION AND DIGITAL AUDIO-VISUAL RECORDING OF SEWERS - CITYWIDE | Design and Construction | National Water Main cleaning Company | $422K | Competitive Sealed Bids | Apr 22, 2005 | 8502005SE0014C |
| Award | CLEANING TELEVISION INSPECTION & DIGITAL AUDIO-VISUAL RECORDING OF SEWERS AT UNKONWN LOCATIONS- CITYWIDE | Design and Construction | National Water Main cleaning Company | $623K | Competitive Sealed Bids | Dec 23, 2003 | 8502003SE0080C |