(same as NAT_R 4300; cross-leveled with ENV_SC 7300, NAT_R 7300). Methods used for quantitative assessment of water quality and quantity in inland waters. Graded on A-F basis only. Recommended: senior standing or BIO_SC 3650 and ENV_SC 4100/NAT_R 4100 or ENV_SC 3400/NAT_R 3400.