Modifiers matching wastewater:

• nitrogenous,
• municipal,
• industrial,
• military,
• domestic,
• complex,
• clean,
• urban,

Simple categories matching urban:

• dust,
• tree,
• animal,
• area,
• network,
• theme,
• life,
• pest,
• interference,
• scavenger,
• establishment,
• structure,
• source,
• surface,
• building,
• facility,
• activity,
• attribute,
• education,
• data,
• component,
• vermin,
• genre,
• culture,
• job,
• residue,
• hospital,
• works,
• space,
• location,
• pollutant,
• affairs,
• pollution,
• institution,
• utility,
• opponent,
• renewal,
• work,
• pet,
• craftsman,
• home,
• metabolism,
• employment,
• outlet,
• scene,
• critter,
• community,
• place,
• body,
• plant,
• division,
• profession,
• furnishing,
• subdivision,
• construction,
• household,
• system,
• tissue,
• use,
• object,
• action,
• equipment,
• host,
• thing,
• railway,
• wearable,
• core,
• waterfront,
• article,
• form,
• migration,
• property,
• event,
• school,
• college,
• encroachment,
• outing,
• folk,
• dweller,
• predator,
• architecture,
• decay,
• benefit,
• market,
• ornament,
• character,
• strength,
• setting,
• waterway,
• challenge,
• material,
• medium,
• service,
• centre,
• force,
• vehicle,
• fitting,
• art,
• sector,
• incident,
• hardware,
• commerce,
• detritus,
• fixture,
• music,
• history,
• wage,
• business,
• chemical,
• association,
• change,
• inhabitant,
• pavement,
• environment,
• phenomenon,
• zone,
• film,
• african,
• situation,
• housing,
• agglomeration,
• sphere,
• furniture,
• hazard,
• mammal,
• neutral,
• wastewater,
• occupation,
• instrument,
• danger,
• neighborhood,
• trend,
• oasis,
• green,
• contaminant,
• transport,
• program,
• drainage,
• dwelling,
• society,
• center,
• group,
• infrastructure,
• district,
• region,
• monument,
• enterprise,
• ministry,
• insect,
• purpose,
• tourism,
• quality,
• redevelopment,
• professional,
• yoga,
• land,
• agent,
• hub,
• movement,
• unit,
• creature,
• characteristic,
• morphology,
• waste,
• function,
• style,
• trait,
• issue,
• ruin,
• black,
• obstacle,
• entity,
• feature,
• site,
• tunnel,
• population,
• administration,
• process,
• condition,
• expansion,
• worker,
• move,
• university,
• item,
• development,
• mobility,
• fabric,
• density,
• bird,
• resource,
• industry,