Last updated: Apr 26, 2026
Two nearby lots can require very different septic designs because Charlotte-area sites commonly transition between well-drained upland loamy sands and more restrictive clay loams or poorly drained bottomlands. That soil shift is not a nuisance-it's the decisive factor for drain-field sizing and layout. A site that looks similar on the surface can behave entirely differently underground, with percolation rates and long-term acceptance that vary block-to-block. Your system design must match the soil story told by on-site borings and tests, not by memory of neighboring installations.
In Mecklenburg County, the drain-field outcome hinges on a rigorous on-site soil evaluation. Percolation and long-term acceptance rates differ across Charlotte properties, even within the same street or subdivision. A conventional field may work in one yard yet fail in a neighboring yard because of subtle depth to restrictive layers, varying horizons, or perched water. The conclusion you reach after a thorough soil assessment will determine whether a standard gravity trench fits the site or if a specialty design is truly necessary to protect groundwater, neighbor wells, and your investment.
Low-lying parts of the area can see a shallower seasonal water table after heavy rains, which can rule out a simple gravity trench field and push a site toward mound, pressure distribution, LPP, or ATU designs. When the soil profile holds moisture longer and drainage slows, the drain-field footprint must be engineered to avoid oversaturation. A one-size-fits-all solution won't cut it in this climate; timing of installation and the chosen system type must reflect how soils behave through wet seasons and drought cycles alike.
You should schedule a focused soil evaluation before choosing a system path. If the site shows deep, well-drained sands with good infiltration, a conventional system may be viable-provided the longer-term performance aligns with local conditions. If the priority is to guard against perched water and shallow groundwater, anticipate considering a mound, LPP, pressure distribution, or an aerobic treatment unit. Either way, document soil layers, seasonal water behavior, and percolation tests in writing, and bring these findings to the design discussions with the contractor. The better your soil picture, the more precise and reliable your drain-field plan will be, reducing the risk of post-install failures and costly redesigns after an unexpected wet season.
Winter and spring wet soils in this region can slow infiltration enough that otherwise functional systems show backups, surfacing effluent, or soggy drain-field areas during the rainy season. When soils saturate, even a well-designed drain field can lose its ability to drain properly, turning a normal operation into a daily warning sign. Homeowners should watch for damp, squishy zones above the drain field, gurgling drains inside the home after a shower, or effluent odors near the distribution lines. In these conditions, the septic system is no longer behaving as intended, and the risk of a failed drain field increases with each storm. The prudent response is to restrict nonessential water use during wet spells and to have a qualified septic professional inspect the system for soil saturation, chamber integrity, and potential need for temporary pumping or adjustments to airflow and bacterial treatment. Persistent winter moisture can also accelerate time between pumping cycles by reducing soil's capacity to absorb effluent, making it essential to plan ahead for the next quiet period.
Heavy autumn rains are a local stress point because they can saturate already marginal soils and increase the need for pumping or troubleshooting in Mecklenburg County systems. As rainfall piles up, the saturation zone expands, and the drain-field's ability to transport effluent away from the soil surface diminishes. This creates a higher likelihood of surface dampness, surface pooling, or new wet spots over the distribution bed. If autumn weather lingers, gradual declines in system performance become more pronounced, signaling the need for a professional assessment of soil conditions, filter integrity, and any excavation-based remedies. In practice, the consult can reveal whether a more robust solution-such as regrading, improved drainage around the system, or a shift to an alternate design like a mound or pressure distribution-might be required to maintain long-term reliability. The key is recognizing that rain alone is not the only driver; it is the combination of persistent saturation, fluctuating groundwater, and heavy rainfall events that elevates the risk of trouble.
Charlotte's humid subtropical climate creates large seasonal swings in soil moisture, so drain-field performance can look very different in a dry summer than after repeated rain events. In dry periods, soils may appear to accept effluent readily, masking underlying weaknesses. When the rainy season returns, those same soils can stiffen and compact, reducing permeability and increasing hydrostatic pressure on the drain field. Homeowners should be mindful that good performance in one season does not guarantee year-round reliability. Signs to monitor include slower drain times, unexpected puddling after irrigation, or recurring odors after storms. Proactive steps include staged pumping schedules aligned with seasonal patterns, targeted soil moisture testing, and a readiness to adapt the system design when seasonal weather shifts push the site out of its safe operating envelope. In Charlotte, the seasonal dance of wet and dry underscores the central challenge: site-specific drain-field design must respond to soil behavior that shifts with the calendar.
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Septic Blue of Charlotte
(704) 464-2869 www.septicbluecharlotte.com
10015 Metromont Industrial Blvd d, Charlotte, North Carolina
4.4 from 774 reviews
Stanley, A Wind River Company
(704) 826-3905 www.wrenvironmental.com
Serving Mecklenburg County
4.9 from 664 reviews
Carolina Septic Pro
(980) 500-1022 carolinasepticpro.com
Serving Mecklenburg County
4.6 from 613 reviews
AAA City Plumbing
(803) 327-5171 www.aaacityplumbing.com
Serving Mecklenburg County
4.9 from 1425 reviews
AAA City Plumbing is a reputable company that has been providing plumbing, drain, and septic services in Rock Hill, South Carolina, and its surrounding areas for the past 30 years. With our wealth of experience, we have become a trusted name in the industry and have served countless residential and commercial clients. Our team of highly skilled plumbers is well-equipped to handle various plumbing issues, including repairs, installations, and maintenance. Whether it's a leaky faucet, clogged drain, or a more complex plumbing problem, we have the expertise to get the job done efficiently and effectively. At AAA City Plumbing, we understand the importance of prompt service and customer satisfaction.
Full Spectrum Plumbing Services
(803) 886-0757 fullspectrumplumbingllc.com
Serving Mecklenburg County
4.9 from 817 reviews
We are a local plumbing company that is proud to offer comprehensive plumbing services to Rock Hill, SC and the surrounding communities. We provide plumbing services including; whole house repiping services, whole home water filtration system installations, sewer line repair, unclogging drains and drain cleaning, emergency plumbing services, garbage disposal installation services, gas line plumbing & water leak detection services. If you are in need of a water filtration system or a water softener to make sure your water is clean, we can help. We also offer well pump repair and well pump replacement, sewer line replacement, septic tank and drain field repair services to our customers. We are a licensed plumbing contractor in Rock Hill SC.
Septic Blue of Charlotte
(704) 464-2869 www.septicbluecharlotte.com
10015 Metromont Industrial Blvd d, Charlotte, North Carolina
4.4 from 774 reviews
Need a septic tank pumping service in Charlotte area? Septic Blue of Charlotte offers reliable septic tank pumping, cleaning, installation, repair, inspection, maintenance in Charlotte, Matthews, Kannapolis, Mooresville, Concord, NC and all nearby towns. Call for septic service now.
Stanley, A Wind River Company
(704) 826-3905 www.wrenvironmental.com
Serving Mecklenburg County
4.9 from 664 reviews
Stanley, A Wind River Company has been providing high-quality septic and grease services in the Carolinas since 1972. With our team of highly trained technicians and state-of-the-art equipment, we can tackle any challenge—from evaluating an existing septic system to providing grease trap cleaning for local restaurants. No matter what the requested service is, our team takes pride in delivering consistent, reliable solutions that conform to all local codes. With our 24/7 availability and expertise, we strive to keep our customers' septic systems running smoothly and improve the quality of life for people throughout the region. Anyone seeking top notch septic and grease services in the Carolinas can count on Stanley Environmental Solutions.
Carolina Septic Pro
(980) 500-1022 carolinasepticpro.com
Serving Mecklenburg County
4.6 from 613 reviews
Carolina Septic Pro offers a wide range of septic services. Some of our services include septic tank pumping and cleaning, inspections, tank repair, tank installation, land clearing, excavation, land grading and site prep. Give us a call today to schedule your services!
Option One Plumbing
(803) 805-8159 calloptionone.com
Serving Mecklenburg County
4.8 from 562 reviews
Serving South Carolina, Option One Plumbing provides a host of plumbing solutions for local area residential and commercial clients. Their expertise includes drain cleaning, water heater repairs, hydro jetting, and sewer line rehabilitation. The company prioritizes quality workmanship and customer satisfaction by employing skilled professionals who understand the importance of efficient service. Plumbing services are also backed by a warranty.
Charlotte Septic Pros
(704) 684-1828 www.charlottesepticpros.com
Serving Mecklenburg County
4.8 from 318 reviews
Charlotte Septic Pros offers reliable residential and commercial septic tank system pumping, cleaning, repair, maintenance and installation services in Charlotte, NC and all nearby towns. Contact us now to schedule wastewater treatment system services in Concord, Charlotte, NC and all nearby towns.
Rapid Rooter
(704) 659-1877 rapidrootercharlotte.com
4203 Ella St, Charlotte, North Carolina
4.8 from 312 reviews
Our plumbing company is locally-owned and operated in Charlotte, NC. We’re honored to have the opportunity to offer superior plumbing assistance and customer service to the residents and business owners of Charlotte. Specializing in All Types of Repair and Replacement Plumbing and Professional Drain Cleaning, including High Velocity water jetting and Camera inspection. Water heater, electric/gas/tankless, repair, replacement and installation . Residential Commercial and Industrial, Licensed, Bonded, Insured.
Osborne Plumbing & Drain
(704) 606-5971 www.osborneplumbingdrain.com
3627 Scott Futrell Dr, Charlotte, North Carolina
4.7 from 247 reviews
Osborne Plumbing & Drain is a trusted plumber near you in Charlotte Metro since 1994. 100% Satisfaction Guaranteed or we'll come back for FREE! Our licensed, local team specializes in 24/7 emergency plumbing, drain cleaning, hydrojetting, sewer camera inspections, sewer line repair & replacement, water heater installation (tank or tankless) & repair, leak detection, fixtures, gas line repair, sump pumps, whole house water filtration, grease traps, plumbing inspections & more. Whether it's a clogged drain, no hot water, or any plumbing emergency, we deliver fast, honest, reliable service day or night. Family-owned, locally operated, and committed to getting it right the first time. Call Osborne now for upfront pricing and expert solutions.
Total Plumbing Mooresville
(704) 702-6160 www.totalplumbingpros.com
Serving Mecklenburg County
4.6 from 172 reviews
Total Plumbing Pros is Mooresville, NC's trusted expert for all your residential and commercial plumbing needs. From emergency repairs to installations and maintenance, our experienced team is dedicated to providing top-quality service with fast response times. We specialize in leak detection, pipe repairs, water heater services, and more—all with upfront pricing and guaranteed satisfaction. Serving Mooresville and surrounding areas, we’re committed to keeping your plumbing running smoothly. Choose Total Plumbing Pros for reliable, local service you can count on.
All Pro Enviro
(704) 604-1735 allproenviro.com
, Charlotte, North Carolina
4.9 from 156 reviews
Flush Your Septic Problems Down the Drain WE OFFER COMPREHENSIVE SEPTIC SYSTEM SERVICE IN MCADENVILLE, NC If there's a problem with your septic system, you could be dealing with annoying backups in your sink or flooding in your yard. All Pro Enviro provides the septic system service you need. We'll take care of any septic pumping or septic repair so you don't have to worry. You can also rely on us for septic tank installation. Whether you're moving into a new place or replacing your current septic tank, we can help you out with the installation. Call today to request septic system service in McAdenville, NC.
Septic Pumping Service
(704) 226-6904 www.septicpumpingservicenc.com
Serving Mecklenburg County
4.6 from 154 reviews
Your home’s septic system is working all day, every day, 365 days a year. In order to keep your system running strong, routine maintenance from a trustworthy company is required. For more than 20 years, the technicians at Septic Pumping Service have proudly served the residents of Matthews, NC, and the surrounding area. Their team is dedicated to delivering superior septic maintenance services, including 24/7 emergency repairs. This family owned and operated company has built a strong reputation in the community for the quality and craftsmanship of their maintenance services. Their staff is up to date on the latest innovations in the field which allows them to spot and treat problem areas quickly.
In Charlotte-area properties, the soil story is decisive. Upland spots with well-drained loamy sands often accept a conventional septic system, provided the drainage and setback distances align. But deeper into Mecklenburg County, clay-rich layers and seasonal wetness push designers toward alternatives. The combination of soils that compact in wet seasons and groundwater patterns means the drain-field design must be tailored to the land rather than applied as a one-size-fits-all solution.
On drier upland parcels where native soils drain quickly and stay within expected moisture limits, a conventional septic system can function reliably. The key is confirming that the trench field can achieve the required separation from beds, water lines, and property features while still allowing adequate infiltration. This path holds when soils display consistent permeability and the seasonal swings do not slow effluent dispersal or promote surface wetness near the field.
Clayier sections or parcels with perched water tables demand more controlled dosing and dispersal. In these cases, a pressure distribution system becomes the practical upgrade. The design uses additional distribution lines and evenly spaced laterals to force effluent deeper into soil layers that can handle it, even when lateral movement would otherwise stall. The approach helps protect surface soils and nearby features by avoiding concentrated loading on a single trench. LPP (low-pressure pipe) systems offer a similar goal with relatively simple improvements to the grid of laterals, fitting properties where gradual, even dispersal is needed.
Mound systems rise in importance on Mecklenburg County lots where native soil or groundwater conditions do not provide the necessary separation distances or where the seasonal wetness compromises conventional trenches. A raised bed, installed with a fabric barrier and engineered fill, gives the required drainage pathways above unfavorable subsoil. An aerobic treatment unit (ATU) emerges as a compatible option when enhanced treatment is needed before effluent enters the drain field; ATUs can reduce loading on stressed soils, supporting better long-term performance in wetter areas. These configurations are not a last resort but a practical, site-responsive choice when subsoil limitations are consistent and predictable.
Begin with a thorough on-site evaluation that includes soil texture, depth to groundwater, and drainage indicators across representative parts of the lot. Map where seasonal moisture increases pressures on the soil and identify setbacks from wells, streams, and structures. Use this information to compare how a conventional, pressure-distribution, LPP, mound, or ATU would perform given the local drainage realities. The goal is a system that distributes effluent evenly, maintains predictable dosing patterns, and meets the constraints imposed by Piedmont soils and climate.
The septic companies have received great reviews for new installations.
Stanley, A Wind River Company
(704) 826-3905 www.wrenvironmental.com
Serving Mecklenburg County
4.9 from 664 reviews
Carolina Septic Pro
(980) 500-1022 carolinasepticpro.com
Serving Mecklenburg County
4.6 from 613 reviews
Before any septic system installation begins, you must navigate Mecklenburg County Public Health's On-Site Wastewater program in coordination with North Carolina's on-site wastewater program. This local partnership ensures that design plans reflect county and state expectations for soil, groundwater, and setback requirements that are unique to Piedmont conditions. The permit process starts with a formal design review, where the proposed system layout is evaluated for suitability given site specifics such as soil texture, depth to groundwater, and nearby wells or streams. A completed design package and permit application are then reviewed, and only after approval can installation proceed.
During installation, inspections occur at key milestones to verify adherence to the approved plan and to confirm that conditions meet regulatory standards. Most homeowners will experience an inspection prior to any digging, to confirm that the planned trench layout and setbacks align with the design. A second inspection occurs after trenching or backfilling has begun, ensuring that the installed components match the approved arrangement and that soil conditions have not altered the intended design. A final inspection is conducted upon completing the system installation, confirming proper operation and that all components are correctly situated relative to boundaries, structures, and sensitive areas. It is essential to schedule these inspections with the designated local authority and to address any corrective actions promptly to maintain the permit validity.
Charlotte-area installations must satisfy county and state requirements tied to setbacks, soil conditions, and groundwater criteria. The Piedmont soils in this region transition from loamy sands on uplands to clay-heavy, seasonally wet low areas, making the drainage-field location a central design decision. Because of this variability, the design review process places emphasis on the drain-field placement, material selection, and, when applicable, measures for seasonal saturation or perched groundwater. Environmental protection and public health considerations drive the review, including ensuring that setbacks from property lines, wells, and watercourses are correctly observed. There is no automatic septic inspection requirement at property sale, so proactive communication with the local health department is encouraged to ensure expectations are clear should a sale occur.
To avoid delay, gather all supporting documents early: site plans, soil boring or probing results if available, a sketch of the proposed trench layout, and any existing drainage features on the property. Coordinate closely with Mecklenburg County Public Health staff and the NC on-site program to align anticipated timelines with weather windows, since soil moisture and groundwater levels can influence inspection readiness. Understanding the local regulatory landscape helps ensure that the installation proceeds smoothly within the distinctive Piedmont setting and meets the protective standards that keep water resources and neighbors safe.
Typical Charlotte-area installation ranges run about $8,000-$15,000 for a conventional system, $18,000-$35,000 for a mound, $14,000-$25,000 for a pressure distribution system, $14,000-$28,000 for an aerobic treatment unit (ATU), and $11,000-$22,000 for a low pressure pipe (LPP) system. These figures reflect the Piedmont soils and seasonal moisture patterns that characterize many properties in this area. When a property's soil evaluation shows the need for an alternative design rather than a conventional system, total project costs can rise. In Mecklenburg County, permit-related costs typically fall around $300-$800, and the overall price tag can climb as site-specific conditions push the design toward higher-cost options.
In Charlotte, soil behavior is a primary cost driver. The Piedmont transitions from loamy sands on uplands to clay-heavy, seasonally wet low areas, and that variability shows up in every septic design choice. If a site has enough clay or perched water to hinder conventional dispersal, engineers may require a mound or a pressurized dispersal system, which pushes costs into the higher end of the ranges noted above. Seasonal wetness can also necessitate pumped or engineered dispersal, broadening the equipment and trenching requirements and, correspondingly, the price.
Choosing a conventional system when soils permit can keep upfront costs lower, but many Charlotte-area lots demand alternative designs to meet absorption and flow criteria. An ATU often adds several thousand dollars upfront but can provide a reliable solution where natural soils resist passive treatment. Low pressure pipe systems offer a middle ground with moderate installation costs and a gentler distribution pattern, useful on marginal soils or where space limits gravity-based designs. A mound system, while the most expensive upfront, may be the only feasible option on tight lots with restrictive groundwater tables or high seasonal saturation.
The local mix of loamy sands and heavier clays means more extensive site preparation and drainage management on many lots. When grading, staked setbacks, and connection trenches intersect with poor soils or shallow bedrock, labor and materials costs climb quickly. If a lot requires deep excavation, additional dewatering, or engineered dispersal fields, you'll see higher total costs, closer to the upper end of the typical ranges. In short, the land itself-its drainage pattern, soil texture, and moisture regime-directly shapes whether a standard drain field will suffice or an alternative design is necessary, and it does so in a way that pushes prices toward the high end of the spectrum.
In Charlotte, a roughly 3-year pumping interval serves as the local baseline, but systems in poorly drained soils or alternative setups like mound and ATU installations often require closer monitoring and sometimes more frequent service. The variability of Piedmont soils means that a given tank may behave differently from season to season, so staying on a predictable schedule helps catch problems before they influence the drain field.
Schedule maintenance before the wettest parts of winter and spring. Saturated soils reduce the ability to distinguish a full tank from a stressed drain field, so performing a pump-out ahead of those heavy rain periods reduces the risk of hauling wastewater during peak moisture. If your system sits on a slope or near poorly drained pockets, this timing becomes even more critical, since drainage patterns shift with cold fronts and rainfall bursts.
Dry spells in summer can mask drainage issues, only for problems to reappear when the rains return. A maintenance plan that accounts for recent weather helps you avoid surprises. For homes with mound or ATU systems, or where soil conditions already slow infiltrations, align the pump-out cadence with extended dry spells followed by anticipated rainfall. This approach minimizes the chance of a perched system or lingering anaerobic odors during the transition from drought to wet seasons.
Track how your system responds after heavy storms. If you notice surface dampness, gurgling toilets, or slower drainage following a wet spell, consider adjusting the typical interval slightly shorter, especially for stress-prone soils. For conventional setups on firmer soils, the standard interval may suffice, but always verify that the distribution lines aren't experiencing undue wetness after upstream rainfall events.
Finally, keep a simple record of pump dates, observed field conditions, and noticeable changes in performance. A confident homeowner can time services to align with seasonal shifts, making annual checks predictable and less reactive to every storm.
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Septic Blue of Charlotte
(704) 464-2869 www.septicbluecharlotte.com
10015 Metromont Industrial Blvd d, Charlotte, North Carolina
4.4 from 774 reviews
Stanley, A Wind River Company
(704) 826-3905 www.wrenvironmental.com
Serving Mecklenburg County
4.9 from 664 reviews
Carolina Septic Pro
(980) 500-1022 carolinasepticpro.com
Serving Mecklenburg County
4.6 from 613 reviews
Charlotte's drain-field performance often hinges on how Piedmont soils change from upland loamy sands to seasonally wet, clay-heavy areas. This means line and pump issues can masquerade as soil problems, and vice versa. The meaningful market for pump repair aligns with the area's use of pressure distribution, LPP, mound, and some ATU systems that depend on pumps and controls rather than simple gravity flow. Recognize that aging components are common in Mecklenburg County homes on septic, so a careful diagnosis is essential.
Begin with what you see and hear: slow drains, gurgling sounds, or wet spots near the septic area that shift with rain. Note whether multiple fixtures act up together or if symptoms appear after a power outage or control activation. Distinguish surface indicators from soil-driven signals by checking if the drain field stays consistently wet or only flares after heavy irrigation or rainfall. In Charlotte, soil moisture fluctuations can mask line or pump faults, so don't assume a field issue is purely soil-related.
Camera inspection is a practical local service because lines can be hard to separate from drain-field issues here. A video run through the sewer line helps identify breaks, offset joints, or root intrusion that might drain or contaminate the system. It also clarifies whether a failing line is the root cause or a symptom of a larger field problem, guiding targeted repairs rather than wholesale replacements.
Pumps and controls drive many systems in this area, especially for pressure distribution, LPP, mound, and certain ATU setups. If a pump cycles excessively, flows unevenly, or a control panel shows faults, focus on replacing or rehabilitating the pump assembly and wiring first. Tank substitutions or line cleaning may be needed when inspections reveal aging tanks or buildup, common in older Mecklenburg County homes.
These companies have been positively reviewed for their work doing camera inspections of septic systems.
Rapid Rooter
(704) 659-1877 rapidrootercharlotte.com
4203 Ella St, Charlotte, North Carolina
4.8 from 312 reviews
Morehead Septic Services
(803) 902-1290 moreheadsepticservices.com
Serving Mecklenburg County
5.0 from 47 reviews
In Mecklenburg County, soil conditions can swing from loamy sands on uplands to clay-heavy, seasonally wet low areas. That variability makes the drain field the central issue for homes on septic. The local reality is that Charlotte does not have a mandatory septic inspection at sale built into the rules provided, so buyers need to request septic evaluation during due diligence rather than assume it will happen automatically. A home sale on septic should verify not just tank condition but whether the installed system type matches the site's constraints. The private market supports this approach: real-estate septic inspections are common, and both buyers and sellers routinely arrange evaluations even without a universal sale-triggered inspection rule.
Start by confirming the exact system type installed and whether it aligns with the soil profile on the property. For a Charlotte property, the site can tilt toward a conventional drain field in upland loams or push toward an alternative design if low areas show seasonal sogginess. Ask for the dates of last pumping, last service, and any repairs to the distribution network or tank integrity. Request a thorough assessment of the drain-field performance, including soil texture tests, absorption capacity, and any evidence of surface dampness, odors, or surface runoff that could indicate a mismatch between system design and site constraints. Ensure the inspection covers accessible components: the septic tank, lids, baffles, and the distribution box, plus any dosing or mound features if present.
A Charlotte-focused evaluation should integrate soil viability into the report. Inspectors usually document soil layer depth, percolation indicators, groundwater proximity, and drainage patterns around the field. They verify that the system type observed during installation remains appropriate for the current site conditions, and flag whether a transition to an alternative technology-such as a mound or pressure distribution design-might be warranted by soil moisture, seasonal saturation, or bedrock limitations. Given the local mix of upland and low-area soils, expect practical recommendations tied to the actual soil behavior observed on the lot.
If the evaluation reveals a mismatch or aging components, negotiations often hinge on addressing the issue before closing. That may mean pursuing repairs, upgrades, or a design modification aligned with the site's soil realities. In Charlotte, buyers frequently use the private assessment to inform offers and contingency timelines, recognizing that the drain field is the make-or-break factor when seasonal wetness and soil variability challenge system longevity.
These companies have been well reviewed their work doing septic inspections for home sales.
Stanley, A Wind River Company
(704) 826-3905 www.wrenvironmental.com
Serving Mecklenburg County
4.9 from 664 reviews
A Stevens Septic Service & Portable Toilets
(704) 776-9598 stevenssepticservice.jobbersites.com
Serving Mecklenburg County
4.5 from 91 reviews