| Environmental Monitoring and Evaluation (51400) | $24,060,509$24,211,863
 | $21,412,022$20,494,379
 | 
| Environmental Monitoring and Compliance for Highway Projects (51408) | FY2019 $7,752,122$6,722,931
 | FY2020 $7,945,925$6,876,404
 | 
| Environmental Monitoring Program Management and Direction (51409) | FY2019 $3,131,597$3,293,882
 | FY2020 $3,209,887$3,356,739
 | 
| Municipal Separate Storm Sewer System (MS4) Compliance Activities (51410) | FY2019 $13,176,790$14,195,050
 | FY2020 $10,256,210$10,261,236
 | 
| Fund Sources: |  |  | 
| Commonwealth Transportation | FY2019 $24,060,509$24,211,863
 | FY2020 $21,412,022$20,494,379
 |