Concrete and Asphalt Power Washing in Cary NC: Driveways, Parking Lots, Sidewalks, and Commercial Surface Cleaning
Concrete and asphalt power washing in Cary NC helps homeowners, business owners, HOAs, apartment communities, restaurants, retail centers, office properties, and property managers clean some of the most visible and heavily used surfaces on a property. Driveways, sidewalks, parking lots, curbs, walkways, concrete pads, drive lanes, loading areas, dumpster approaches, and entry paths collect dirt, algae, mildew, red clay, tire marks, oil stains, hydraulic fluid, gum, pollen, food spills, and daily traffic buildup.
These surfaces get dirty gradually. A driveway may darken over time. A parking lot may collect tire marks and oil stains. A sidewalk may become uneven-looking because of algae, shade, pollen, and foot traffic. Commercial entrances may look worn down even when the business itself is clean and well maintained.
Prestige Power Washing LLC helps homeowners and property owners with concrete and asphalt power washing, driveway power washing, patio power washing, commercial pressure washing, building and breezeway cleaning, full detail house washing, roof cleaning, oil and hydraulic fluid removal, and other exterior cleaning services. The company is locally owned and operated in Cary, NC, with more than 10 years of exterior cleaning experience and a customer-first process designed to be pain-free and enjoyable from beginning to end.
If your driveway, sidewalk, parking lot, curb, walkway, patio, entry area, or commercial concrete looks dark, stained, slippery, or neglected, call 919.520.4521 or request a free estimate from Prestige Power Washing LLC.
What Is Concrete and Asphalt Power Washing?
Concrete and asphalt power washing is a professional exterior cleaning service for durable hard surfaces. It uses controlled pressure, professional equipment, and the right cleaning method to remove visible buildup from concrete, asphalt, brick, pavers, curbs, sidewalks, parking areas, and other hard exterior surfaces.
Concrete and asphalt power washing may help clean:
- Residential driveways
- Commercial parking lots
- Sidewalks
- Walkways
- Curbs
- Drive lanes
- Loading zones
- Concrete pads
- Asphalt surfaces
- Dumpster pad approaches
- Apartment community walkways
- HOA common areas
- Restaurant exterior surfaces
- Retail storefront sidewalks
- Office building entries
- Patio and pool deck areas
- Tire marks
- Oil and hydraulic fluid stains
- Algae, mildew, dirt, and grime
The goal is not to blast every surface with the highest possible pressure. The goal is to match the cleaning method to the surface, stain type, buildup level, drainage area, and property use.
Concrete and Asphalt Power Washing in Cary NC: Why It Matters
Concrete and asphalt power washing in Cary NC matters because the Triangle’s weather can create surface buildup quickly. Humidity, shade, pollen, rain, red clay, tree debris, tire traffic, and daily use all leave marks on exterior surfaces.
Professional surface cleaning can support:
- Better curb appeal
- Cleaner property entrances
- Better first impressions
- Reduced visible algae and mildew buildup
- Cleaner sidewalks and walkways
- Brighter driveway appearance
- Cleaner commercial parking areas
- Better property presentation before inspections
- Cleaner HOA and apartment common areas
- Better appearance before listing a home
- Cleaner restaurant and retail entrances
- A more complete exterior maintenance plan
Power washing does not repair cracked concrete, failing asphalt, drainage issues, potholes, structural problems, or deep permanent staining. It is an exterior cleaning service designed to remove surface buildup and improve appearance.
Common Signs Your Concrete or Asphalt Needs Cleaning
Most property owners notice concrete and asphalt buildup after comparing a dirty area to a freshly cleaned section. The contrast can be dramatic.
Common signs include:
- Dark driveway surface
- Black tire marks
- Oil spots
- Hydraulic fluid stains
- Green algae on shaded concrete
- Mildew on walkways
- Red clay staining
- Gum on sidewalks
- Food and drink spills
- Grease-like residue near restaurants
- Dumpster approach stains
- Dirty curbs
- Darkened parking lines
- Pollen film
- Mud tracking
- Leaf stains
- Slippery-looking shaded areas
- HOA appearance concerns
- Tenant or customer complaints
- Entry areas that look worn down
If the surface looks stained, uneven, dark, or slippery after rain, a professional cleaning may help restore a cleaner appearance.
Concrete vs. Asphalt: Why the Cleaning Method Matters
Concrete and asphalt are both durable, but they are not identical. Concrete is a rigid surface that may show algae, tire marks, red clay, and surface discoloration. Asphalt is more flexible and can be affected by age, sealcoating condition, heat, traffic, and petroleum-based stains.
| Surface | Common Buildup | What Property Owners Should Know |
|---|---|---|
| Concrete driveways | Tire marks, algae, dirt, red clay | Often responds well to professional power washing |
| Asphalt parking areas | Oil, tire marks, grime, traffic buildup | Requires surface-aware cleaning and realistic expectations |
| Sidewalks | Foot traffic, pollen, algae, gum | Important for first impressions and walkability |
| Curbs | Road grime, dirt, tire scuffs | Helps improve overall property appearance |
| Dumpster approaches | Residue, spills, stains, grime | May need more detailed cleaning attention |
| Commercial pads | Oil, hydraulic fluid, traffic buildup | May require targeted stain treatment |
Prestige Power Washing LLC can review the surface and recommend the right cleaning approach.
Concrete and Asphalt Power Washing vs. Standard Pressure Washing
Pressure washing is a method. Concrete and asphalt power washing is a service plan focused on hard-surface cleaning, stain type, surface condition, and property needs.
| Service | Best Use | Why It Matters |
|---|---|---|
| Concrete and asphalt power washing | Driveways, parking lots, sidewalks, curbs, commercial pads | Built for durable hard surfaces |
| Driveway power washing | Residential driveway cleaning | Focuses on curb appeal and home entry areas |
| Commercial pressure washing | Storefronts, walkways, entrances, parking areas, service zones | Fits business and managed-property needs |
| Oil and hydraulic fluid removal | Stained concrete, asphalt, parking areas, service zones | Targets vehicle and equipment-related stains |
| Patio power washing | Outdoor living surfaces, pavers, concrete, stone | Helps refresh outdoor use areas |
| Full detail house wash | Siding, trim, gutters, soffits, porches | Uses softer methods where high pressure is not appropriate |
| Roof cleaning | Roof surfaces with organic buildup | Uses a roof-safe soft-wash approach |
The right service depends on the surface. A roof, vinyl siding, concrete driveway, asphalt parking lot, and patio should not all be cleaned the same way.
What Areas Can Be Cleaned?
Concrete and asphalt power washing can be used for residential and commercial properties. The best candidates are durable exterior surfaces that collect traffic-related buildup, organic growth, soil, and stains.
| Area | Common Buildup | Why Cleaning Helps |
|---|---|---|
| Residential driveways | Tire marks, algae, dirt, red clay | Improves curb appeal from the street |
| Commercial parking lots | Oil, tire marks, grime, debris | Helps businesses look better maintained |
| Sidewalks | Foot traffic, gum, algae, pollen | Creates a cleaner path for visitors |
| Walkways | Dirt, mildew, leaf stains | Helps improve entry-area appearance |
| Curbs | Tire scuffs, road grime, dirt | Makes edges look cleaner |
| Apartment communities | Breezeways, sidewalks, parking areas | Supports resident and leasing impressions |
| HOA common areas | Sidewalks, pool areas, mail kiosk paths | Helps shared spaces look maintained |
| Restaurant exteriors | Grease-like residue, spills, traffic | Supports a cleaner customer experience |
| Retail centers | Gum, spills, foot traffic buildup | Helps storefronts look more inviting |
| Office buildings | Entry paths, walkways, curbs | Improves professional presentation |
Prestige Power Washing LLC can review the property and recommend which surfaces should be cleaned together for the best overall result.
What Causes Concrete and Asphalt Stains?
Concrete and asphalt surfaces are exposed to daily wear. Some buildup comes from weather. Some comes from vehicles. Some comes from foot traffic, food spills, landscaping, and surrounding surfaces.
Common causes include:
- Tire marks
- Oil stains
- Hydraulic fluid leaks
- Vehicle traffic
- Foot traffic
- Gum
- Restaurant spills
- Dumpster area residue
- Red clay
- Pollen
- Leaves
- Pine needles
- Algae
- Mildew
- Moss
- Shade
- Poor drainage
- Sprinkler overspray
- Mud tracking
- Construction dust
- Commercial deliveries
Some stains clean more easily than others. Fresh dirt, algae, pollen, and mildew often respond well. Older oil, hydraulic fluid, rust, deep tire marks, and long-term staining may require targeted treatment and realistic expectations.
Is Concrete and Asphalt Power Washing Safe?
Concrete and asphalt power washing is safe when performed with the right equipment, pressure, technique, and surface awareness. The cleaning method should be matched to the surface condition, stain type, drainage area, and surrounding property features.
A safe cleaning plan should consider:
- Surface type
- Surface age
- Cracks or damaged areas
- Sealcoating condition
- Nearby landscaping
- Doors and thresholds
- Outdoor furniture
- Vehicles
- Drainage paths
- Pedestrian traffic
- Business hours
- Pets and children
- Nearby siding or painted surfaces
- Weather conditions
- Water access
- Sloped areas
Prestige Power Washing LLC uses professional equipment and methods designed to clean effectively while protecting the property.
Concrete and Asphalt Power Washing Process at Prestige Power Washing LLC
Concrete and asphalt power washing in Cary NC should follow a careful process. The goal is to clean the surface, protect surrounding areas, and create a more consistent appearance.
A typical process may include:
- Property review
The team reviews driveways, sidewalks, curbs, parking areas, walkways, patios, commercial pads, drainage areas, and nearby surfaces.
Surface and stain evaluation
The technician checks for algae, mildew, tire marks, oil stains, hydraulic fluid, gum, red clay, rust, traffic buildup, and surface damage.
Preparation and protection
Vehicles, furniture, planters, mats, signs, and movable items may need to be moved. Nearby plants, doors, and sensitive areas may be noted.
Pre-treatment when appropriate
Certain stains and organic buildup may be treated before cleaning to help improve results.
Professional power washing
The surface is cleaned using the appropriate method for concrete, asphalt, pavers, curbs, sidewalks, or commercial hardscapes.
Detail attention
Edges, corners, entry paths, high-traffic areas, and visible stain zones may receive additional attention.
Final rinse and review
The surface is rinsed and reviewed so the property owner understands results, remaining stains, and future maintenance needs.
Maintenance guidance
Prestige Power Washing LLC can recommend cleaning frequency based on traffic, shade, pollen, and surface use.
The best results come from using the right method, not simply more pressure.
What Homeowners and Property Managers Should Do Before Service
A little preparation can make the appointment smoother and help the crew work efficiently.
Before concrete and asphalt power washing:
- Move vehicles from driveways or parking areas
- Remove small planters, furniture, mats, and signs
- Clear toys, bikes, and loose items
- Unlock gates if needed
- Point out oil, hydraulic fluid, or heavy stains
- Mention damaged concrete or asphalt areas
- Keep pets and children away from active work areas
- Notify tenants, residents, or staff when needed
- Plan around deliveries or customer traffic
- Move trash bins if they block access
- Close nearby doors and windows
- Share HOA, inspection, or deadline concerns
- Make water access available if required
You do not need to pre-clean the surface. Prestige Power Washing LLC can explain what should be moved or prepared before service.
How Long Does Concrete and Asphalt Power Washing Take?
The timeline depends on surface size, access, stain severity, buildup level, water availability, drainage, weather, and whether the service is residential or commercial.
| Project Type | Typical Scope | Timeline Factors |
|---|---|---|
| Residential driveway | Driveway surface and entry area | Size, stains, and access affect time |
| Driveway plus walkway | Driveway, front walk, steps, entry path | More surfaces create a more complete result |
| Commercial sidewalk | Storefront or office entry path | Customer traffic and scheduling matter |
| Parking lot cleaning | Larger asphalt or concrete areas | Size, stains, and access affect scope |
| Apartment community cleaning | Walkways, breezeways, sidewalks, curbs | May be completed in phases |
| Restaurant exterior cleaning | Entryways, patios, dumpster approaches | Grease-like residue and timing matter |
| HOA common area cleaning | Sidewalks, pool areas, mail kiosk paths | Amenity layout and resident traffic matter |
Prestige Power Washing LLC can explain the expected timeline after reviewing the property.
How Much Does Concrete and Asphalt Power Washing Cost in Cary NC?
Concrete and asphalt power washing cost in Cary NC depends on the size of the area, surface type, buildup level, stain severity, access, drainage, water availability, traffic control needs, and whether the cleaning is paired with other services.
Common cost factors include:
| Cost Factor | Why It Matters | What Property Owners Should Know |
|---|---|---|
| Surface size | Larger areas require more time and planning | Square footage affects scope |
| Surface type | Concrete, asphalt, brick, and pavers differ | Method should match the material |
| Buildup level | Heavy algae, mildew, grime, or red clay takes more work | Long-neglected areas may need extra time |
| Oil or hydraulic fluid | Vehicle-related stains may need targeted treatment | Some stains may not disappear completely |
| Access | Gates, parking, water access, and slopes affect setup | Clear access helps the process |
| Traffic control | Commercial properties may need low-traffic scheduling | Planning protects customers and residents |
| Package size | Driveways can pair with house, patio, roof, or sidewalk cleaning | Bundled cleaning can improve the overall result |
| Commercial needs | Larger properties may require phasing | Scheduling should fit operations |
A free estimate is the best way to understand the project scope and price before scheduling.
How Often Should Concrete and Asphalt Surfaces Be Cleaned?
Cleaning frequency depends on traffic, shade, tree coverage, pollen, weather, stain type, and appearance standards. Residential driveways may need cleaning seasonally or annually. Commercial surfaces may need more frequent service depending on use.
You may need more frequent cleaning if:
- Driveways show tire marks quickly
- The surface stays shaded
- Algae returns after humid weather
- Pollen collects heavily
- Red clay washes onto the concrete
- Parking lots get heavy traffic
- Restaurants have outdoor service areas
- Dumpster areas affect nearby surfaces
- HOA standards apply
- Leasing tours or inspections are coming up
- Customers use the entryway daily
- Oil or hydraulic fluid appears often
Routine cleaning helps prevent buildup from becoming the first thing people notice.
Concrete and Asphalt Power Washing for Homeowners
For homeowners, driveways and walkways are among the largest and most visible surfaces on the property. A stained driveway can make the whole front exterior look older, even if the house, landscaping, and roof are well maintained.
Residential power washing may help with:
- Driveway curb appeal
- Front walkway appearance
- Patio and pool deck cleaning
- Entryway refreshes
- Seasonal maintenance
- Home sale preparation
- HOA appearance standards
- Cleaning after pollen season
- Cleaning after landscaping work
- Pairing with full detail house washing
For a bigger curb appeal improvement, many homeowners combine driveway power washing with a full detail house wash, roof cleaning, and patio power washing.
Concrete and Asphalt Power Washing for Commercial Properties
Commercial surfaces work hard. Customers, employees, tenants, delivery drivers, residents, and vendors use sidewalks, parking areas, entrances, and service zones every day. Dirty surfaces can make a property look less professional before someone enters the building.
Commercial power washing may help clean:
- Parking lots
- Sidewalks
- Storefront walkways
- Retail centers
- Office entrances
- Apartment communities
- Restaurant exteriors
- Drive-thru lanes
- Loading zones
- Dumpster approaches
- HOA common areas
- Commercial pads
- Curbs and walkways
- Breezeway approaches
Prestige Power Washing LLC can help schedule commercial cleaning around business hours, tenant access, leasing tours, inspections, or seasonal maintenance needs.
Oil and Hydraulic Fluid Stains: What to Expect
Oil and hydraulic fluid can be more difficult than ordinary dirt or algae. These substances can soak into porous surfaces and leave deep staining, especially if they have been sitting for a long time. Professional cleaning can improve the appearance and reduce visible residue, but older stains may not vanish completely.
Oil and hydraulic fluid cleaning may be useful for:
- Driveways
- Parking spots
- Auto-related facilities
- Loading areas
- Contractor parking areas
- Commercial pads
- Apartment parking areas
- Restaurant service zones
- Retail service areas
- Equipment storage areas
The best time to address oil and hydraulic fluid stains is before they sit for months or years. Prestige Power Washing LLC can review the surface and explain realistic expectations before service.
Pairing Concrete Cleaning With Other Exterior Services
Many properties get the best result when concrete and asphalt power washing is paired with other exterior cleaning services. Cleaning the driveway but leaving dirty siding, stained patios, or dark walkways may make the exterior look uneven.
Prestige Power Washing LLC can help property owners choose a package that may include:
- Concrete and asphalt power washing
- Driveway power washing
- Sidewalk cleaning
- Patio power washing
- Full detail house washing
- Roof cleaning
- Commercial pressure washing
- Building and breezeway cleaning
- Oil and hydraulic fluid removal
- Restaurant exterior cleaning
- HOA common area cleaning
- Apartment community cleaning
The company’s detailed cleaning packages are designed to help the property look cleaner from the parking lot to the front door.
DIY Concrete and Asphalt Cleaning Risks
DIY power washing may seem simple, but using the wrong pressure, tip, distance, cleaning solution, or technique can cause damage or leave visible streaks. Concrete and asphalt can also become slippery during cleaning, and commercial areas require careful traffic planning.
DIY risks include:
- Etching concrete
- Leaving wand marks
- Creating uneven cleaning lines
- Damaging old or weak surfaces
- Spraying water into doors or garages
- Damaging nearby siding or trim
- Using the wrong cleaning solution
- Hurting plants or grass
- Failing to control runoff
- Working around active traffic
- Slipping on wet surfaces
- Missing oil or hydraulic fluid residue
- Not having the right equipment
- Taking far longer than expected
Professional power washing is about method, safety, and surface knowledge, not just water pressure.
Concrete and Asphalt Power Washing for Cary, Raleigh, Apex, Wake Forest, Durham, and the Triangle
Prestige Power Washing LLC serves Cary, Raleigh, Apex, Morrisville, Holly Springs, Garner, Wake Forest, Durham, Clayton, and nearby Triangle communities. Concrete and asphalt cleaning needs vary by traffic, shade, tree coverage, pollen exposure, soil, commercial use, and surface age.
Local properties may need concrete and asphalt power washing because of:
- Humid weather
- Heavy pollen
- Red clay
- Tree coverage
- Tire traffic
- Oil stains
- Hydraulic fluid stains
- Restaurant spills
- Gum
- Commercial foot traffic
- HOA appearance standards
- Apartment community maintenance
- Parking lot buildup
- Dirty storefront walkways
- Seasonal exterior cleaning goals
A local exterior cleaning company understands how Triangle weather and daily property use affect concrete and asphalt surfaces.
How Prestige Power Washing LLC Helps Homeowners and Property Owners
Prestige Power Washing LLC is locally owned and operated in Cary, NC. The company brings more than 10 years of exterior cleaning experience and focuses on detailed cleaning packages, reliable communication, and customer satisfaction.
Homeowners and property owners choose Prestige Power Washing LLC for:
- Concrete and asphalt power washing
- Driveway power washing
- Patio power washing
- Commercial pressure washing
- Building and breezeway cleaning
- Oil and hydraulic fluid removal
- Full detail house washing
- Roof cleaning
- Storefront cleaning
- Apartment community cleaning
- HOA common area cleaning
- Restaurant exterior cleaning
- Sidewalk cleaning
- Detailed cleaning packages
- On-time service
- Care before, during, and after the job
The goal is to make exterior cleaning easy, professional, and thorough while helping the property look its best.
Anonymized Examples of Concrete and Asphalt Cleaning Situations
Every property is different, but these examples show why Cary and Raleigh property owners schedule concrete and asphalt power washing.
A Cary homeowner with a dark driveway
A homeowner noticed the driveway looked several shades darker than the walkway near the front door. Tire marks, algae, and pollen had built up over time. Driveway power washing helped the front of the home look cleaner and more cared for.
A Raleigh retail center with dirty storefront sidewalks
A retail center had gum, spills, and foot traffic buildup along the walkway in front of several businesses. Professional cleaning helped improve the first impression for customers walking from the parking area to the storefronts.
An Apex HOA preparing common areas for summer
An HOA wanted sidewalks, pool-area concrete, and mail kiosk approaches cleaned before heavier seasonal use. Cleaning helped shared spaces feel more ready for residents.
A Wake Forest business with oil spots near service areas
A commercial property had oil and hydraulic fluid staining in a service zone. The owner wanted the area cleaned before an inspection and before customer traffic increased. Professional power washing helped improve the appearance of the surface.
These examples are educational and not based on identifiable customers. Project cost, timing, cleaning method, and results depend on the surface, stain age, buildup level, drainage, traffic, access, and property condition.
Schedule Concrete and Asphalt Power Washing in Cary NC
If your driveway, sidewalk, parking lot, curb, walkway, patio, concrete pad, dumpster approach, or commercial surface looks stained, dark, slick, or neglected, Prestige Power Washing LLC can help you choose the right cleaning approach.
Call 919.520.4521 or request a free estimate from Prestige Power Washing LLC.
- Request a free estimate
- Review concrete and asphalt power washing
- Learn about driveway power washing
- Explore patio power washing
- Review commercial pressure washing
- Explore oil and hydraulic fluid removal
- Explore building and breezeway cleaning
- Review full detail house wash
- Explore roof cleaning
- Read more exterior cleaning articles
This article is for general information only. Concrete and asphalt power washing recommendations depend on surface material, surface condition, buildup level, stain age, access, water availability, traffic, drainage, and surrounding property features. Exterior cleaning is not a substitute for concrete repair, asphalt repair, drainage repair, resurfacing, sealcoating, or structural maintenance.
FAQs About Concrete and Asphalt Power Washing in Cary NC
What is concrete and asphalt power washing?
Concrete and asphalt power washing is a professional exterior cleaning service for driveways, sidewalks, parking lots, curbs, walkways, commercial pads, dumpster approaches, and other durable hard surfaces. It helps remove dirt, algae, mildew, tire marks, red clay, grime, and visible traffic buildup.
Is power washing safe for concrete?
Power washing is generally safe for concrete when performed with the correct pressure, equipment, distance, and cleaning method. Damaged, weak, old, or cracked concrete may need extra care. Prestige Power Washing LLC reviews the surface before cleaning.
Is power washing safe for asphalt?
Asphalt can be cleaned, but the method should be matched to the asphalt condition, age, sealcoating, stains, and traffic use. Professional cleaning helps reduce avoidable damage and sets realistic expectations for older stains.
Will power washing remove oil and hydraulic fluid stains?
Professional cleaning can improve many oil and hydraulic fluid stains, especially when addressed early. Older stains may soak into porous surfaces and may not disappear completely. Prestige Power Washing LLC can review the stain and explain realistic expectations.
How often should I clean my driveway or parking lot?
Cleaning frequency depends on traffic, shade, pollen, algae growth, oil staining, red clay, and appearance standards. Many homeowners schedule driveway cleaning seasonally or annually, while commercial properties may need more frequent service.
Can concrete cleaning help curb appeal?
Yes. Driveways, sidewalks, and walkways are some of the most visible areas of a property. Cleaning dark, stained, or algae-covered concrete can make the entire exterior look brighter and better maintained.
Do commercial properties need concrete and asphalt power washing?
Many commercial properties benefit from regular hard-surface cleaning. Parking lots, sidewalks, storefront entrances, restaurant exteriors, dumpster approaches, and drive lanes collect traffic buildup, gum, spills, oil, and grime that can affect first impressions.
How long does concrete and asphalt power washing take?
The timeline depends on surface size, buildup level, stain severity, access, water availability, traffic control, weather, and whether the service is residential or commercial. Prestige Power Washing LLC can explain timing after reviewing the property.
How much does concrete and asphalt power washing in Cary NC cost?
Cost depends on surface size, material, buildup level, oil or hydraulic fluid staining, access, drainage, water availability, traffic control, and whether other services are included. A free estimate is the best way to understand scope and pricing.
Who should I call for concrete and asphalt power washing in Cary NC?
Call Prestige Power Washing LLC at 919.520.4521 for concrete and asphalt power washing in Cary NC, Raleigh, Apex, Morrisville, Holly Springs, Wake Forest, Durham, Clayton, and nearby Triangle communities.
Sources
- Prestige Power Washing LLC
- Prestige Power Washing LLC Concrete and Asphalt Power Washing
- Prestige Power Washing LLC Contact
- Prestige Power Washing LLC Driveway Power Washing
- Prestige Power Washing LLC Patio Power Washing
- Prestige Power Washing LLC Commercial Pressure Washing
- Prestige Power Washing LLC Oil and Hydraulic Fluid Removal
- Prestige Power Washing LLC Building and Breezeway Cleaning
- Prestige Power Washing LLC Full Detail House Wash
- Prestige Power Washing LLC Roof Cleaning
- Prestige Power Washing LLC Blogs
- CDC: Pressure Washer Safety
- OSHA: Walking-Working Surfaces
- EPA: Stormwater Discharges from Municipal Sources
