Nice shots Jersey. Yes I built my pond, no I didn't apply for (or need) a 404 permit, have your read the 404 exemptions ?

Certain activities in waters of the United States are exempted by law from regulation under Section 404(f), including certain farming, ranching, and forestry activities. Included are normal farming, silvicultural, and ranching activities, maintenance of recently damaged structures, construction and maintenance of farm ponds and irrigation ditches, construction of temporary sedimentation basins, and construction and maintenance of farm, forest, and mining roads using approved best management practices. However, the exemptions are applied carefully and are not intended to exempt activities with more than minor adverse impacts to the aquatic ecosystem.