All Guides: The Trenton Herbarium

Twelve guides mounted as specimen sheets, filed in three folders. Pick a folder tab or open any sheet.

No. 01Recycle & DisposeTrenton Recycling GuideHow curbside recycling works in Trenton under the Mercer County program: the 2026 Wednesday schedule, what is accepted, what contaminates a load, where to get a bucket and how to report a missed pickup.Trenton, N.J. · 4 min readNo. 02Recycle & DisposeHousehold Hazardous Waste in Mercer CountyWhere Trenton residents can take old paint thinner, pesticides, propane tanks, motor oil and fluorescent bulbs: the Mercer County Improvement Authority’s three 2026 collection days, the accepted list and how to store and transport chemicals safely.Trenton, N.J. · 4 min readNo. 03Recycle & DisposeElectronics Recycling in New JerseyWhat New Jersey’s Electronic Waste Management Act means for Trenton households: which devices are banned from the trash, why the City will not take them at the curb, where Mercer County collects them and how to prepare a device first.Trenton, N.J. · 4 min readNo. 04Recycle & DisposeStorm Drains and Stormwater in TrentonWhere Trenton’s rainwater ends up, why nearly a fifth of the city lies in a floodplain, the stormwater rules the City adopted from the state’s model ordinances, and what not to pour into drains or flush down toilets.Trenton, N.J. · 4 min readNo. 05Rivers & ParksThe Delaware River at TrentonWhy Trenton sits at a turning point of the Delaware River: the head of tide, a ten-foot tidal change, a drainage area of 6,780 square miles, the river’s record floods at the Trenton gauge and how the river went from polluted to celebrated.Trenton, N.J. · 4 min readNo. 06Rivers & ParksAssunpink Creek and Flooding in TrentonThe creek that runs through the heart of Trenton: its 90.6-square-mile watershed, its record floods measured by USGS, why the city’s location stacks up floodwater, and the City’s own advice for before and after a flood.Trenton, N.J. · 4 min readNo. 07Rivers & ParksRiver Cleanups and Green Volunteering in TrentonHow Trenton residents can help keep streets, riverbanks and parks clean: New Jersey’s Clean Communities program, Mercer County’s adopt-a-highway and beach programs, the Trenton Green Team and practical safety rules for a cleanup day.Trenton, N.J. · 4 min readNo. 08Rivers & ParksTrenton’s Parks and Green SpacesA guide to Trenton’s green spaces: the Olmsted-planned Cadwalader Park and its history, the Delaware and Raritan Canal feeder that crosses it, the city’s renovated neighborhood parks, public pools and seasonal programs from canoeing to a youth fishing derby.Trenton, N.J. · 4 min readNo. 09Healthy Home & YardLead in Trenton’s Drinking WaterWhere lead in Trenton tap water comes from, how to check your own service line with a key and a magnet, how Trenton Water Works’ free and mandatory replacement program works and the everyday steps that lower exposure until your line is replaced.Trenton, N.J. · 4 min readNo. 10Healthy Home & YardLead Paint and Children in New JerseyHow children are exposed to lead in older Trenton homes, when New Jersey children should be tested, what the City’s lead program does after an elevated result, and how the state’s lead-safe certification rule for pre-1978 rentals works.Trenton, N.J. · 4 min readNo. 11Healthy Home & YardRadon Testing in Mercer County HomesWhy any Trenton-area home can have a radon problem, how to run a short-term or long-term test correctly, EPA’s three-step decision process around the 4 pCi/L action level, and where to find test kits and qualified professionals.Trenton, N.J. · 4 min readNo. 12Healthy Home & YardComposting at Home in New JerseyHow to turn leaves, grass and vegetable scraps into compost in a Trenton-area yard, using Rutgers Cooperative Extension’s slow and fast methods, the right mix of greens and browns, what to leave out and how to use the finished compost.Trenton, N.J. · 4 min read