diff --git a/CLAUDE.md b/CLAUDE.md
index edb7cb8..ce62938 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -160,8 +160,21 @@ bind `FakeSmsService` via `$this->app->instance(SmsService::class, ...)` in
     `assigned_drop_off_point_id` to nearest active DOP within 25km)
   - `POST /households/{uuid}/reassign-drop-off` re-runs the lookup
   - SampleDropOffPointsSeeder creates 5 DOPs around the sample barangays
-- All 97 feature tests passing
-- [ ] Module 6+: see `../docs/development-roadmap.md`
+- [x] Module 6: Dumpsites — complete
+  - `dumpsites` (uuid, name, code, city_municipality_id, coordinates POINT
+    4326 with `SPATIAL INDEX`, boundary_polygon POLYGON 4326, capacity_tons,
+    operating_hours JSON, accepted_waste_types JSON, permit_number, contacts)
+  - `dumpsite_releases` schema in place (trip_id is nullable bigint without
+    FK; Module 10 will add the constraint when `trips` exists)
+  - Admin CRUD: `GET/POST/PATCH/DELETE /admin/dumpsites`
+  - Boundary input is `[{lat,lng}, ...]` (≥3 points); auto-closes the ring
+    if the client doesn't repeat the first point
+  - `Dumpsite::containsPoint(lat, lng)` for geofence checks via
+    `ST_Contains` — Module 10 fires `arrived_at_dumpsite` based on this
+  - SampleDumpsitesSeeder creates a sample Payatas-area dumpsite with a
+    rectangular boundary so geofence tests + dev work
+- All 109 feature tests passing
+- [ ] Module 7+: see `../docs/development-roadmap.md`
 
 ### Geo notes
 - Boundary polygons + centroids stored nullable for now. Once a full PSGC
diff --git a/app/Http/Controllers/Api/V1/Admin/AdminDumpsiteController.php b/app/Http/Controllers/Api/V1/Admin/AdminDumpsiteController.php
new file mode 100644
index 0000000..cdf8779
--- /dev/null
+++ b/app/Http/Controllers/Api/V1/Admin/AdminDumpsiteController.php
@@ -0,0 +1,156 @@
+<?php
+
+namespace App\Http\Controllers\Api\V1\Admin;
+
+use App\Http\Controllers\Api\V1\ApiController;
+use App\Http\Requests\Dumpsite\StoreDumpsiteRequest;
+use App\Http\Requests\Dumpsite\UpdateDumpsiteRequest;
+use App\Http\Resources\DumpsiteResource;
+use App\Models\Dumpsite;
+use Illuminate\Http\JsonResponse;
+use Illuminate\Http\Request;
+use MatanYadaev\EloquentSpatial\Objects\LineString;
+use MatanYadaev\EloquentSpatial\Objects\Point;
+use MatanYadaev\EloquentSpatial\Objects\Polygon;
+
+class AdminDumpsiteController extends ApiController
+{
+    public function index(Request $request): JsonResponse
+    {
+        $request->validate([
+            'status' => ['nullable', 'in:active,maintenance,closed'],
+            'city_municipality_id' => ['nullable', 'integer'],
+            'q' => ['nullable', 'string', 'max:100'],
+            'per_page' => ['nullable', 'integer', 'min:1', 'max:100'],
+        ]);
+
+        $perPage = (int) $request->input('per_page', 25);
+
+        $dumpsites = Dumpsite::query()
+            ->with('cityMunicipality')
+            ->when($request->filled('status'), fn ($q) => $q->where('status', $request->string('status')))
+            ->when(
+                $request->filled('city_municipality_id'),
+                fn ($q) => $q->where('city_municipality_id', $request->integer('city_municipality_id')),
+            )
+            ->when($request->filled('q'), function ($q) use ($request) {
+                $term = '%'.$request->string('q').'%';
+                $q->where(fn ($qq) => $qq->where('name', 'like', $term)
+                    ->orWhere('code', 'like', $term)
+                    ->orWhere('address_line', 'like', $term));
+            })
+            ->orderBy('name')
+            ->paginate($perPage);
+
+        return $this->ok(
+            DumpsiteResource::collection($dumpsites),
+            null,
+            [
+                'page' => $dumpsites->currentPage(),
+                'per_page' => $dumpsites->perPage(),
+                'total' => $dumpsites->total(),
+                'last_page' => $dumpsites->lastPage(),
+            ],
+        );
+    }
+
+    public function store(StoreDumpsiteRequest $request): JsonResponse
+    {
+        $data = $request->validated();
+
+        $payload = $this->mapPayload($data);
+        $payload['name'] = $data['name'];
+        $payload['code'] = $data['code'];
+        $payload['address_line'] = $data['address_line'];
+        $payload['city_municipality_id'] = $data['city_municipality_id'] ?? null;
+        $payload['accepted_waste_types'] = $data['accepted_waste_types'] ?? null;
+        $payload['operating_hours'] = $data['operating_hours'] ?? null;
+        $payload['capacity_tons'] = $data['capacity_tons'] ?? null;
+        $payload['contact_person'] = $data['contact_person'] ?? null;
+        $payload['contact_phone'] = $data['contact_phone'] ?? null;
+        $payload['permit_number'] = $data['permit_number'] ?? null;
+        $payload['status'] = $data['status'] ?? Dumpsite::STATUS_ACTIVE;
+
+        $dumpsite = Dumpsite::create($payload);
+
+        return $this->created(
+            new DumpsiteResource($dumpsite->fresh()->load('cityMunicipality')),
+            'Dumpsite created',
+        );
+    }
+
+    public function show(Dumpsite $dumpsite): JsonResponse
+    {
+        $dumpsite->load('cityMunicipality.province.region');
+
+        return $this->ok(new DumpsiteResource($dumpsite));
+    }
+
+    public function update(UpdateDumpsiteRequest $request, Dumpsite $dumpsite): JsonResponse
+    {
+        $data = $request->validated();
+        $payload = $this->mapPayload($data);
+
+        // Carry through scalar/json fields that mapPayload doesn't touch.
+        foreach ([
+            'name', 'code', 'address_line', 'city_municipality_id',
+            'accepted_waste_types', 'operating_hours', 'capacity_tons',
+            'contact_person', 'contact_phone', 'permit_number', 'status',
+        ] as $key) {
+            if (array_key_exists($key, $data)) {
+                $payload[$key] = $data[$key];
+            }
+        }
+
+        $dumpsite->update($payload);
+
+        return $this->ok(
+            new DumpsiteResource($dumpsite->fresh()->load('cityMunicipality')),
+            'Dumpsite updated',
+        );
+    }
+
+    public function destroy(Dumpsite $dumpsite): JsonResponse
+    {
+        $dumpsite->delete();
+
+        return $this->ok(null, 'Dumpsite deleted');
+    }
+
+    /**
+     * Translate lat/lng + boundary_polygon[{lat,lng}, ...] inputs into
+     * spatial Polygon/Point objects suitable for assignment to the model.
+     */
+    private function mapPayload(array $data): array
+    {
+        $payload = [];
+
+        if (isset($data['lat'], $data['lng'])) {
+            $payload['coordinates'] = new Point((float) $data['lat'], (float) $data['lng'], 4326);
+        }
+
+        if (array_key_exists('boundary_polygon', $data)) {
+            $payload['boundary_polygon'] = $data['boundary_polygon']
+                ? $this->buildPolygon($data['boundary_polygon'])
+                : null;
+        }
+
+        return $payload;
+    }
+
+    private function buildPolygon(array $points): Polygon
+    {
+        $ring = array_map(
+            fn ($p) => new Point((float) $p['lat'], (float) $p['lng'], 4326),
+            $points,
+        );
+
+        $first = $ring[0];
+        $last = $ring[count($ring) - 1];
+        if ($first->latitude !== $last->latitude || $first->longitude !== $last->longitude) {
+            $ring[] = new Point($first->latitude, $first->longitude, 4326);
+        }
+
+        return new Polygon([new LineString($ring)], 4326);
+    }
+}
diff --git a/app/Http/Requests/Dumpsite/StoreDumpsiteRequest.php b/app/Http/Requests/Dumpsite/StoreDumpsiteRequest.php
new file mode 100644
index 0000000..1363567
--- /dev/null
+++ b/app/Http/Requests/Dumpsite/StoreDumpsiteRequest.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace App\Http\Requests\Dumpsite;
+
+use App\Models\Dumpsite;
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+
+class StoreDumpsiteRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        return [
+            'name' => ['required', 'string', 'max:191'],
+            'code' => ['required', 'string', 'max:32', Rule::unique('dumpsites', 'code')->whereNull('deleted_at')],
+            'address_line' => ['required', 'string', 'max:255'],
+            'city_municipality_id' => ['nullable', 'integer', 'exists:cities_municipalities,id'],
+            'lat' => ['required', 'numeric', 'between:-90,90'],
+            'lng' => ['required', 'numeric', 'between:-180,180'],
+            'boundary_polygon' => ['nullable', 'array', 'min:3'],
+            'boundary_polygon.*.lat' => ['required_with:boundary_polygon', 'numeric', 'between:-90,90'],
+            'boundary_polygon.*.lng' => ['required_with:boundary_polygon', 'numeric', 'between:-180,180'],
+            'accepted_waste_types' => ['nullable', 'array'],
+            'accepted_waste_types.*' => ['string', 'max:50'],
+            'operating_hours' => ['nullable', 'array'],
+            'capacity_tons' => ['nullable', 'integer', 'min:0'],
+            'contact_person' => ['nullable', 'string', 'max:191'],
+            'contact_phone' => ['nullable', 'string', 'max:32'],
+            'permit_number' => ['nullable', 'string', 'max:100'],
+            'status' => ['nullable', Rule::in([
+                Dumpsite::STATUS_ACTIVE,
+                Dumpsite::STATUS_MAINTENANCE,
+                Dumpsite::STATUS_CLOSED,
+            ])],
+        ];
+    }
+}
diff --git a/app/Http/Requests/Dumpsite/UpdateDumpsiteRequest.php b/app/Http/Requests/Dumpsite/UpdateDumpsiteRequest.php
new file mode 100644
index 0000000..6907989
--- /dev/null
+++ b/app/Http/Requests/Dumpsite/UpdateDumpsiteRequest.php
@@ -0,0 +1,46 @@
+<?php
+
+namespace App\Http\Requests\Dumpsite;
+
+use App\Models\Dumpsite;
+use Illuminate\Foundation\Http\FormRequest;
+use Illuminate\Validation\Rule;
+
+class UpdateDumpsiteRequest extends FormRequest
+{
+    public function authorize(): bool
+    {
+        return true;
+    }
+
+    public function rules(): array
+    {
+        $id = $this->route('dumpsite')?->id;
+
+        return [
+            'name' => ['sometimes', 'required', 'string', 'max:191'],
+            'code' => [
+                'sometimes', 'required', 'string', 'max:32',
+                Rule::unique('dumpsites', 'code')->whereNull('deleted_at')->ignore($id),
+            ],
+            'address_line' => ['sometimes', 'required', 'string', 'max:255'],
+            'city_municipality_id' => ['sometimes', 'nullable', 'integer', 'exists:cities_municipalities,id'],
+            'lat' => ['sometimes', 'required_with:lng', 'numeric', 'between:-90,90'],
+            'lng' => ['sometimes', 'required_with:lat', 'numeric', 'between:-180,180'],
+            'boundary_polygon' => ['sometimes', 'nullable', 'array', 'min:3'],
+            'boundary_polygon.*.lat' => ['required_with:boundary_polygon', 'numeric', 'between:-90,90'],
+            'boundary_polygon.*.lng' => ['required_with:boundary_polygon', 'numeric', 'between:-180,180'],
+            'accepted_waste_types' => ['sometimes', 'nullable', 'array'],
+            'operating_hours' => ['sometimes', 'nullable', 'array'],
+            'capacity_tons' => ['sometimes', 'nullable', 'integer', 'min:0'],
+            'contact_person' => ['sometimes', 'nullable', 'string', 'max:191'],
+            'contact_phone' => ['sometimes', 'nullable', 'string', 'max:32'],
+            'permit_number' => ['sometimes', 'nullable', 'string', 'max:100'],
+            'status' => ['sometimes', Rule::in([
+                Dumpsite::STATUS_ACTIVE,
+                Dumpsite::STATUS_MAINTENANCE,
+                Dumpsite::STATUS_CLOSED,
+            ])],
+        ];
+    }
+}
diff --git a/app/Http/Resources/DumpsiteResource.php b/app/Http/Resources/DumpsiteResource.php
new file mode 100644
index 0000000..9115b4d
--- /dev/null
+++ b/app/Http/Resources/DumpsiteResource.php
@@ -0,0 +1,44 @@
+<?php
+
+namespace App\Http\Resources;
+
+use Illuminate\Http\Request;
+use Illuminate\Http\Resources\Json\JsonResource;
+
+class DumpsiteResource extends JsonResource
+{
+    public function toArray(Request $request): array
+    {
+        $boundaryPoints = null;
+        if ($this->boundary_polygon) {
+            $rings = $this->boundary_polygon->getGeometries();
+            $ring = $rings->first();
+            if ($ring) {
+                $boundaryPoints = $ring->getGeometries()
+                    ->map(fn ($p) => ['lat' => $p->latitude, 'lng' => $p->longitude])
+                    ->all();
+            }
+        }
+
+        return [
+            'id' => $this->uuid,
+            'name' => $this->name,
+            'code' => $this->code,
+            'address_line' => $this->address_line,
+            'coordinates' => $this->coordinates ? [
+                'lat' => $this->coordinates->latitude,
+                'lng' => $this->coordinates->longitude,
+            ] : null,
+            'boundary_polygon' => $boundaryPoints,
+            'accepted_waste_types' => $this->accepted_waste_types,
+            'operating_hours' => $this->operating_hours,
+            'capacity_tons' => $this->capacity_tons,
+            'permit_number' => $this->permit_number,
+            'status' => $this->status,
+            'contact_person' => $this->contact_person,
+            'contact_phone' => $this->contact_phone,
+            'city_municipality' => CityMunicipalityResource::make($this->whenLoaded('cityMunicipality')),
+            'created_at' => $this->created_at?->toIso8601String(),
+        ];
+    }
+}
diff --git a/app/Models/Dumpsite.php b/app/Models/Dumpsite.php
new file mode 100644
index 0000000..c123f9d
--- /dev/null
+++ b/app/Models/Dumpsite.php
@@ -0,0 +1,94 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use Illuminate\Database\Eloquent\Relations\HasMany;
+use Illuminate\Database\Eloquent\SoftDeletes;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Str;
+use MatanYadaev\EloquentSpatial\Objects\Point;
+use MatanYadaev\EloquentSpatial\Objects\Polygon;
+use MatanYadaev\EloquentSpatial\Traits\HasSpatial;
+
+class Dumpsite extends Model
+{
+    use HasFactory, HasSpatial, SoftDeletes;
+
+    public const STATUS_ACTIVE = 'active';
+    public const STATUS_MAINTENANCE = 'maintenance';
+    public const STATUS_CLOSED = 'closed';
+
+    protected $fillable = [
+        'uuid',
+        'name',
+        'code',
+        'address_line',
+        'city_municipality_id',
+        'coordinates',
+        'boundary_polygon',
+        'accepted_waste_types',
+        'operating_hours',
+        'capacity_tons',
+        'contact_person',
+        'contact_phone',
+        'permit_number',
+        'status',
+    ];
+
+    protected function casts(): array
+    {
+        return [
+            'coordinates' => Point::class,
+            'boundary_polygon' => Polygon::class,
+            'accepted_waste_types' => 'array',
+            'operating_hours' => 'array',
+            'capacity_tons' => 'integer',
+        ];
+    }
+
+    public function getRouteKeyName(): string
+    {
+        return 'uuid';
+    }
+
+    protected static function booted(): void
+    {
+        static::creating(function (self $d): void {
+            if (empty($d->uuid)) {
+                $d->uuid = (string) Str::uuid();
+            }
+        });
+    }
+
+    public function cityMunicipality(): BelongsTo
+    {
+        return $this->belongsTo(CityMunicipality::class);
+    }
+
+    public function releases(): HasMany
+    {
+        return $this->hasMany(DumpsiteRelease::class);
+    }
+
+    /**
+     * Geofence check: is the given (lat, lng) inside this dumpsite's
+     * boundary polygon? Returns false if no boundary is configured.
+     */
+    public function containsPoint(float $latitude, float $longitude): bool
+    {
+        if (! $this->boundary_polygon) {
+            return false;
+        }
+
+        $row = DB::selectOne(
+            'SELECT ST_Contains(boundary_polygon, ST_SRID(POINT(?, ?), 4326)) AS contained
+             FROM dumpsites WHERE id = ? LIMIT 1',
+            [$longitude, $latitude, $this->id],
+        );
+
+        return (bool) ($row->contained ?? false);
+    }
+}
diff --git a/app/Models/DumpsiteRelease.php b/app/Models/DumpsiteRelease.php
new file mode 100644
index 0000000..3569721
--- /dev/null
+++ b/app/Models/DumpsiteRelease.php
@@ -0,0 +1,52 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Factories\HasFactory;
+use Illuminate\Database\Eloquent\Model;
+use Illuminate\Database\Eloquent\Relations\BelongsTo;
+use MatanYadaev\EloquentSpatial\Objects\Point;
+use MatanYadaev\EloquentSpatial\Traits\HasSpatial;
+
+/**
+ * Records a load released at a dumpsite at the end of a trip. Populated
+ * by Module 10 (Trips & Timeline). Module 6 only creates the schema.
+ */
+class DumpsiteRelease extends Model
+{
+    use HasFactory, HasSpatial;
+
+    protected $fillable = [
+        'trip_id',
+        'dumpsite_id',
+        'released_at',
+        'released_by_driver_id',
+        'weight_kg',
+        'waste_type_breakdown',
+        'gate_pass_number',
+        'dumpsite_attendant_name',
+        'photo_evidence_path',
+        'coordinates_at_release',
+        'notes',
+    ];
+
+    protected function casts(): array
+    {
+        return [
+            'released_at' => 'datetime',
+            'weight_kg' => 'integer',
+            'waste_type_breakdown' => 'array',
+            'coordinates_at_release' => Point::class,
+        ];
+    }
+
+    public function dumpsite(): BelongsTo
+    {
+        return $this->belongsTo(Dumpsite::class);
+    }
+
+    public function releasedByDriver(): BelongsTo
+    {
+        return $this->belongsTo(User::class, 'released_by_driver_id');
+    }
+}
diff --git a/database/factories/DumpsiteFactory.php b/database/factories/DumpsiteFactory.php
new file mode 100644
index 0000000..88f13f9
--- /dev/null
+++ b/database/factories/DumpsiteFactory.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Database\Factories;
+
+use App\Models\Dumpsite;
+use Illuminate\Database\Eloquent\Factories\Factory;
+use Illuminate\Support\Str;
+use MatanYadaev\EloquentSpatial\Objects\LineString;
+use MatanYadaev\EloquentSpatial\Objects\Point;
+use MatanYadaev\EloquentSpatial\Objects\Polygon;
+
+/**
+ * @extends \Illuminate\Database\Eloquent\Factories\Factory<\App\Models\Dumpsite>
+ */
+class DumpsiteFactory extends Factory
+{
+    protected $model = Dumpsite::class;
+
+    public function definition(): array
+    {
+        $lat = 14.7;
+        $lng = 121.1;
+        $half = 0.003;
+
+        return [
+            'uuid' => (string) Str::uuid(),
+            'name' => fake()->city().' Dumpsite',
+            'code' => 'DS-'.strtoupper(Str::random(6)),
+            'address_line' => fake()->streetAddress(),
+            'coordinates' => new Point($lat, $lng, 4326),
+            'boundary_polygon' => new Polygon([new LineString([
+                new Point($lat - $half, $lng - $half, 4326),
+                new Point($lat - $half, $lng + $half, 4326),
+                new Point($lat + $half, $lng + $half, 4326),
+                new Point($lat + $half, $lng - $half, 4326),
+                new Point($lat - $half, $lng - $half, 4326),
+            ])], 4326),
+            'capacity_tons' => 1000,
+            'status' => Dumpsite::STATUS_ACTIVE,
+        ];
+    }
+}
diff --git a/database/migrations/2026_05_04_100000_create_dumpsites_table.php b/database/migrations/2026_05_04_100000_create_dumpsites_table.php
new file mode 100644
index 0000000..2332f28
--- /dev/null
+++ b/database/migrations/2026_05_04_100000_create_dumpsites_table.php
@@ -0,0 +1,48 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('dumpsites', function (Blueprint $table) {
+            $table->id();
+            $table->uuid('uuid')->unique();
+            $table->string('name', 191);
+            $table->string('code', 32)->unique();
+            $table->string('address_line', 255);
+            $table->foreignId('city_municipality_id')
+                ->nullable()
+                ->constrained('cities_municipalities')
+                ->nullOnDelete();
+            $table->geometry('coordinates', subtype: 'point', srid: 4326);
+            $table->geometry('boundary_polygon', subtype: 'polygon', srid: 4326)->nullable();
+            $table->json('accepted_waste_types')->nullable();
+            $table->json('operating_hours')->nullable();
+            $table->unsignedInteger('capacity_tons')->nullable();
+            $table->string('contact_person', 191)->nullable();
+            $table->string('contact_phone', 32)->nullable();
+            $table->string('permit_number', 100)->nullable();
+            $table->enum('status', ['active', 'maintenance', 'closed'])
+                ->default('active')
+                ->index();
+            $table->timestamps();
+            $table->softDeletes();
+
+            $table->index(['city_municipality_id', 'status']);
+        });
+
+        DB::statement(
+            'ALTER TABLE dumpsites ADD SPATIAL INDEX dumpsites_coords_spx (coordinates)',
+        );
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('dumpsites');
+    }
+};
diff --git a/database/migrations/2026_05_04_100001_create_dumpsite_releases_table.php b/database/migrations/2026_05_04_100001_create_dumpsite_releases_table.php
new file mode 100644
index 0000000..68e5e89
--- /dev/null
+++ b/database/migrations/2026_05_04_100001_create_dumpsite_releases_table.php
@@ -0,0 +1,39 @@
+<?php
+
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\Schema;
+
+return new class extends Migration
+{
+    public function up(): void
+    {
+        Schema::create('dumpsite_releases', function (Blueprint $table) {
+            $table->id();
+            // trip_id will reference `trips` once Module 10 lands; add the
+            // FK constraint there. For now keep it nullable bigint.
+            $table->unsignedBigInteger('trip_id')->nullable()->index();
+            $table->foreignId('dumpsite_id')->constrained('dumpsites')->cascadeOnDelete();
+            $table->timestamp('released_at');
+            $table->foreignId('released_by_driver_id')
+                ->nullable()
+                ->constrained('users')
+                ->nullOnDelete();
+            $table->unsignedInteger('weight_kg');
+            $table->json('waste_type_breakdown')->nullable();
+            $table->string('gate_pass_number', 100)->nullable();
+            $table->string('dumpsite_attendant_name', 191)->nullable();
+            $table->string('photo_evidence_path')->nullable();
+            $table->geometry('coordinates_at_release', subtype: 'point', srid: 4326)->nullable();
+            $table->text('notes')->nullable();
+            $table->timestamps();
+
+            $table->index(['dumpsite_id', 'released_at']);
+        });
+    }
+
+    public function down(): void
+    {
+        Schema::dropIfExists('dumpsite_releases');
+    }
+};
diff --git a/database/seeders/DatabaseSeeder.php b/database/seeders/DatabaseSeeder.php
index 0759cdf..8513312 100644
--- a/database/seeders/DatabaseSeeder.php
+++ b/database/seeders/DatabaseSeeder.php
@@ -13,6 +13,7 @@ class DatabaseSeeder extends Seeder
             AdminUserSeeder::class,
             SamplePsgcSeeder::class,
             SampleDropOffPointsSeeder::class,
+            SampleDumpsitesSeeder::class,
         ]);
     }
 }
diff --git a/database/seeders/SampleDumpsitesSeeder.php b/database/seeders/SampleDumpsitesSeeder.php
new file mode 100644
index 0000000..ae7546d
--- /dev/null
+++ b/database/seeders/SampleDumpsitesSeeder.php
@@ -0,0 +1,62 @@
+<?php
+
+namespace Database\Seeders;
+
+use App\Models\CityMunicipality;
+use App\Models\Dumpsite;
+use Illuminate\Database\Seeder;
+use MatanYadaev\EloquentSpatial\Objects\LineString;
+use MatanYadaev\EloquentSpatial\Objects\Point;
+use MatanYadaev\EloquentSpatial\Objects\Polygon;
+
+/**
+ * Sample dumpsite for development. Real Payatas / Rizal MRF coordinates
+ * with a small rectangular geofence so geofence-trigger logic in Module
+ * 10 has something to fire against.
+ */
+class SampleDumpsitesSeeder extends Seeder
+{
+    public function run(): void
+    {
+        $qc = CityMunicipality::where('code', 'QC')->first();
+
+        // Old Payatas dumpsite area (closed in real life — used here as a
+        // sample only). Centered at ~14.7155, 121.1083.
+        $center = ['lat' => 14.7155, 'lng' => 121.1083];
+        $half = 0.0035; // ~390m at this latitude
+
+        $boundaryPoints = [
+            new Point($center['lat'] - $half, $center['lng'] - $half, 4326),
+            new Point($center['lat'] - $half, $center['lng'] + $half, 4326),
+            new Point($center['lat'] + $half, $center['lng'] + $half, 4326),
+            new Point($center['lat'] + $half, $center['lng'] - $half, 4326),
+            new Point($center['lat'] - $half, $center['lng'] - $half, 4326),
+        ];
+
+        Dumpsite::updateOrCreate(
+            ['code' => 'DS-PAYATAS-01'],
+            [
+                'name' => 'Payatas Sanitary Landfill (sample)',
+                'address_line' => 'Payatas, Quezon City',
+                'city_municipality_id' => $qc?->id,
+                'coordinates' => new Point($center['lat'], $center['lng'], 4326),
+                'boundary_polygon' => new Polygon([new LineString($boundaryPoints)], 4326),
+                'accepted_waste_types' => ['general', 'biodegradable', 'residual'],
+                'operating_hours' => [
+                    'mon' => ['open' => '06:00', 'close' => '22:00'],
+                    'tue' => ['open' => '06:00', 'close' => '22:00'],
+                    'wed' => ['open' => '06:00', 'close' => '22:00'],
+                    'thu' => ['open' => '06:00', 'close' => '22:00'],
+                    'fri' => ['open' => '06:00', 'close' => '22:00'],
+                    'sat' => ['open' => '06:00', 'close' => '18:00'],
+                    'sun' => null,
+                ],
+                'capacity_tons' => 5000,
+                'permit_number' => 'DENR-NCR-SAMPLE-2026',
+                'contact_person' => 'Site Manager',
+                'contact_phone' => '+63281234567',
+                'status' => Dumpsite::STATUS_ACTIVE,
+            ],
+        );
+    }
+}
diff --git a/routes/api.php b/routes/api.php
index 4fa202c..263564b 100644
--- a/routes/api.php
+++ b/routes/api.php
@@ -1,6 +1,7 @@
 <?php
 
 use App\Http\Controllers\Api\V1\Admin\AdminDropOffPointController;
+use App\Http\Controllers\Api\V1\Admin\AdminDumpsiteController;
 use App\Http\Controllers\Api\V1\Admin\AdminHouseholdController;
 use App\Http\Controllers\Api\V1\Admin\AdminUserController;
 use App\Http\Controllers\Api\V1\Auth\ForgotPasswordController;
@@ -110,6 +111,17 @@ Route::prefix('admin/drop-off-points')
         Route::post('/{drop_off_point}/capacity', [AdminDropOffPointController::class, 'logCapacity'])->name('capacity.store');
     });
 
+Route::prefix('admin/dumpsites')
+    ->name('api.v1.admin.dumpsites.')
+    ->middleware(['auth:sanctum', 'role:admin'])
+    ->group(function () {
+        Route::get('/', [AdminDumpsiteController::class, 'index'])->name('index');
+        Route::post('/', [AdminDumpsiteController::class, 'store'])->name('store');
+        Route::get('/{dumpsite}', [AdminDumpsiteController::class, 'show'])->name('show');
+        Route::patch('/{dumpsite}', [AdminDumpsiteController::class, 'update'])->name('update');
+        Route::delete('/{dumpsite}', [AdminDumpsiteController::class, 'destroy'])->name('destroy');
+    });
+
 Route::middleware('auth:sanctum')->prefix('households')->name('api.v1.households.')->group(function () {
     Route::post('/{household}/reassign-drop-off', [HouseholdController::class, 'reassignDropOff'])
         ->name('reassign-drop-off');
diff --git a/tests/Feature/Api/V1/Dumpsite/DumpsiteCrudTest.php b/tests/Feature/Api/V1/Dumpsite/DumpsiteCrudTest.php
new file mode 100644
index 0000000..bdccd6b
--- /dev/null
+++ b/tests/Feature/Api/V1/Dumpsite/DumpsiteCrudTest.php
@@ -0,0 +1,165 @@
+<?php
+
+namespace Tests\Feature\Api\V1\Dumpsite;
+
+use App\Models\Dumpsite;
+use App\Models\User;
+use Database\Seeders\RoleSeeder;
+use Database\Seeders\SamplePsgcSeeder;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Laravel\Sanctum\Sanctum;
+use Tests\TestCase;
+
+class DumpsiteCrudTest extends TestCase
+{
+    use RefreshDatabase;
+
+    private User $admin;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        $this->seed([RoleSeeder::class, SamplePsgcSeeder::class]);
+        $this->admin = User::factory()->create([
+            'role' => User::ROLE_ADMIN,
+            'status' => User::STATUS_ACTIVE,
+        ]);
+    }
+
+    public function test_admin_can_create_dumpsite_with_boundary(): void
+    {
+        Sanctum::actingAs($this->admin);
+
+        $response = $this->postJson('/api/v1/admin/dumpsites', [
+            'name' => 'Test Dumpsite',
+            'code' => 'DS-TEST-01',
+            'address_line' => '123 Landfill Rd',
+            'lat' => 14.7,
+            'lng' => 121.1,
+            'boundary_polygon' => [
+                ['lat' => 14.695, 'lng' => 121.095],
+                ['lat' => 14.695, 'lng' => 121.105],
+                ['lat' => 14.705, 'lng' => 121.105],
+                ['lat' => 14.705, 'lng' => 121.095],
+            ],
+            'accepted_waste_types' => ['general', 'biodegradable'],
+            'capacity_tons' => 2000,
+            'permit_number' => 'DENR-2026-001',
+        ]);
+
+        $response->assertCreated()
+            ->assertJsonPath('data.code', 'DS-TEST-01')
+            ->assertJsonPath('data.permit_number', 'DENR-2026-001');
+
+        $this->assertDatabaseHas('dumpsites', ['code' => 'DS-TEST-01']);
+        $boundary = $response->json('data.boundary_polygon');
+        $this->assertCount(5, $boundary, 'Boundary should be auto-closed (4 points -> 5 with first repeated)');
+    }
+
+    public function test_create_rejects_polygon_with_fewer_than_3_points(): void
+    {
+        Sanctum::actingAs($this->admin);
+
+        $response = $this->postJson('/api/v1/admin/dumpsites', [
+            'name' => 'Bad', 'code' => 'DS-BAD',
+            'address_line' => 'X', 'lat' => 14, 'lng' => 121,
+            'boundary_polygon' => [
+                ['lat' => 14, 'lng' => 121],
+                ['lat' => 14.1, 'lng' => 121.1],
+            ],
+        ]);
+
+        $response->assertStatus(422)
+            ->assertJsonValidationErrors(['boundary_polygon']);
+    }
+
+    public function test_admin_can_update_boundary_polygon(): void
+    {
+        Sanctum::actingAs($this->admin);
+        $d = Dumpsite::factory()->create();
+
+        $newRing = [
+            ['lat' => 14.0, 'lng' => 121.0],
+            ['lat' => 14.0, 'lng' => 121.1],
+            ['lat' => 14.1, 'lng' => 121.1],
+            ['lat' => 14.1, 'lng' => 121.0],
+        ];
+
+        $response = $this->patchJson("/api/v1/admin/dumpsites/{$d->uuid}", [
+            'boundary_polygon' => $newRing,
+        ]);
+
+        $response->assertOk();
+        $this->assertCount(5, $response->json('data.boundary_polygon'));
+    }
+
+    public function test_admin_can_clear_boundary(): void
+    {
+        Sanctum::actingAs($this->admin);
+        $d = Dumpsite::factory()->create();
+
+        $response = $this->patchJson("/api/v1/admin/dumpsites/{$d->uuid}", [
+            'boundary_polygon' => null,
+        ]);
+
+        $response->assertOk()
+            ->assertJsonPath('data.boundary_polygon', null);
+    }
+
+    public function test_admin_can_list_dumpsites_with_filter(): void
+    {
+        Sanctum::actingAs($this->admin);
+        Dumpsite::factory()->create(['status' => 'active', 'code' => 'DS-A']);
+        Dumpsite::factory()->create(['status' => 'closed', 'code' => 'DS-B']);
+
+        $response = $this->getJson('/api/v1/admin/dumpsites?status=active');
+
+        $response->assertOk();
+        $codes = collect($response->json('data'))->pluck('code')->all();
+        $this->assertContains('DS-A', $codes);
+        $this->assertNotContains('DS-B', $codes);
+    }
+
+    public function test_admin_can_show_and_delete_dumpsite(): void
+    {
+        Sanctum::actingAs($this->admin);
+        $d = Dumpsite::factory()->create();
+
+        $this->getJson("/api/v1/admin/dumpsites/{$d->uuid}")
+            ->assertOk()
+            ->assertJsonPath('data.code', $d->code);
+
+        $this->deleteJson("/api/v1/admin/dumpsites/{$d->uuid}")->assertOk();
+        $this->assertSoftDeleted('dumpsites', ['id' => $d->id]);
+    }
+
+    public function test_resident_blocked(): void
+    {
+        $resident = User::factory()->create([
+            'role' => User::ROLE_RESIDENT,
+            'status' => User::STATUS_ACTIVE,
+        ]);
+        Sanctum::actingAs($resident);
+
+        $this->getJson('/api/v1/admin/dumpsites')->assertStatus(403);
+    }
+
+    public function test_unauthed_blocked(): void
+    {
+        $this->getJson('/api/v1/admin/dumpsites')->assertStatus(401);
+    }
+
+    public function test_duplicate_code_rejected(): void
+    {
+        Sanctum::actingAs($this->admin);
+        Dumpsite::factory()->create(['code' => 'DS-DUP']);
+
+        $response = $this->postJson('/api/v1/admin/dumpsites', [
+            'name' => 'Other', 'code' => 'DS-DUP', 'address_line' => 'X',
+            'lat' => 14, 'lng' => 121,
+        ]);
+
+        $response->assertStatus(422)
+            ->assertJsonValidationErrors(['code']);
+    }
+}
diff --git a/tests/Feature/Api/V1/Dumpsite/DumpsiteGeofenceTest.php b/tests/Feature/Api/V1/Dumpsite/DumpsiteGeofenceTest.php
new file mode 100644
index 0000000..f522ca0
--- /dev/null
+++ b/tests/Feature/Api/V1/Dumpsite/DumpsiteGeofenceTest.php
@@ -0,0 +1,42 @@
+<?php
+
+namespace Tests\Feature\Api\V1\Dumpsite;
+
+use App\Models\Dumpsite;
+use Database\Seeders\RoleSeeder;
+use Database\Seeders\SampleDumpsitesSeeder;
+use Database\Seeders\SamplePsgcSeeder;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+use Tests\TestCase;
+
+class DumpsiteGeofenceTest extends TestCase
+{
+    use RefreshDatabase;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        $this->seed([RoleSeeder::class, SamplePsgcSeeder::class, SampleDumpsitesSeeder::class]);
+    }
+
+    public function test_contains_point_returns_true_inside_boundary(): void
+    {
+        $d = Dumpsite::where('code', 'DS-PAYATAS-01')->firstOrFail();
+
+        $this->assertTrue($d->containsPoint(14.7155, 121.1083));
+    }
+
+    public function test_contains_point_returns_false_outside_boundary(): void
+    {
+        $d = Dumpsite::where('code', 'DS-PAYATAS-01')->firstOrFail();
+
+        $this->assertFalse($d->containsPoint(14.5, 121.0));
+    }
+
+    public function test_contains_point_false_when_no_boundary(): void
+    {
+        $d = Dumpsite::factory()->create(['boundary_polygon' => null]);
+
+        $this->assertFalse($d->containsPoint(14.7, 121.1));
+    }
+}