In North Carolina, water rights come with the land. If you own land along a stream or pond, you have a riparian right to make reasonable use of that water, and groundwater can be used reasonably on the land above it. For a horse buyer, the real questions are practical: does the well produce enough, is the water safe, and what rules apply near streams, lakes, and ponds?

How North Carolina water law works on a farm

A 2009 paper prepared for a UNC School of Government course summarizes the common law. Owners of land next to a stream or pond hold a set of riparian rights, including the right to make reasonable use of the water as it flows past. Those rights can't be exercised in a way that unreasonably harms other riparian owners. The paper notes that riparian owners don't own the water itself, only the right to use it.

"Reasonable uses normally include manufacturing purposes as well as domestic and agricultural purposes connected to the riparian parcel."

UNC School of Government, Water Ownership by N.C. Local Governments

Groundwater follows a similar idea. The same paper explains that North Carolina follows the "American" rule, which allows pumping for reasonable uses, and that the water must be used on the land above the source. Watering your own horses from your own well fits that comfortably.

State registration is not a concern at horse-farm scale. Under G.S. 143-215.22H, registration starts at withdrawals of 100,000 gallons a day, and the law sets a higher 1,000,000-gallon threshold for agricultural uses, including livestock. A horse farm uses a tiny fraction of either number.

Where questions do come up is shared water: a pond that straddles a property line, a neighbor's diversion upstream, or a well that serves two homes. Those are matters for a real estate attorney, and any sharing arrangement should be in writing and recorded.

How much water a horse farm uses

The national Cooperative Extension horse resource puts a mature, idle horse at 10 to 12 gallons of water per day. It then lists what pushes that number up:

"Lactating mares require 50 to 70 percent additional water to replace the water used in milk production. The water requirement for horses subjected to hard work will double due to water lost through sweat and respiration. Increases in ambient temperature will also cause the horse's water requirement to double."

Cooperative Extension (horses.extension.org), Horses and Water

A worked example. Six idle horses at 12 gallons each use about 72 gallons a day. On a hot Piedmont day that can double to about 144 gallons, before you count hosing, cleaning buckets, or watering an arena. Two lactating mares in the group add another 50 to 70 percent each to their share.

The daily total is only part of the picture. Delivery matters too: troughs far from a hydrant, a single line feeding the house and barn, or a well that can't keep up when several things run at once. The same Extension resource notes horses drink best when water is between 45°F and 65°F, so shade on summer troughs and freeze protection in winter both matter. Our seasonal maintenance checklist covers hydrants and frozen lines.

Wells: permits, records, and testing

Every county runs a well program

Under G.S. 87-97, each North Carolina county, through its local health department, must run a private drinking water well permitting, inspection, and testing program. A construction permit is required before a new well is drilled. Within 30 days after the health department issues a certificate of completion for a new drinking water well, the water must be tested for a list of contaminants that includes arsenic, lead, manganese, nitrates, and bacterial indicators.

Ask for the well construction record

State rule 15A NCAC 02C .0114 requires the well contractor to file a construction record (form GW-1) with the state within 30 days of completing a well. The record must include the well's diameter, depth, and yield, and for water supply wells a copy goes to the county health department. When you buy, ask the seller for the GW-1 for each well, and check with the county environmental health office if the seller doesn't have it. The yield on that form is a snapshot from the day it was drilled, so a current flow test by a certified well contractor is still worth considering for a barn that depends on it.

Test the water, and know your geology

NC DHHS recommends this schedule for existing private wells:

Every year: total and fecal coliform bacteria, plus a check of the wellhead for cracks or openings.
Every two years: heavy metals, nitrates, nitrites, lead, and copper.
Every five years: pesticides and volatile organic compounds.
After flooding or well repairs, since contaminants can enter when the well is opened or the wellhead is underwater.

Tests can be done through your local health department (using the State Laboratory of Public Health) or a state-certified commercial lab. DHHS notes that procedures and fees vary from county to county.

Geology matters east and southeast of Charlotte.

"A higher percentage of arsenic-contaminated wells occurred in the Carolina Slate Belt, which runs in North Carolina through the west-central part of the state from Union County to Person County."

UNC Gillings School of Global Public Health, Legacy of Ancient Volcanoes May Help Predict Arsenic Contaminated Wells in NC

The UNC researchers found that in some geologic units, 1 in 3 wells had arsenic above the federal drinking water standard. If you're buying a farm in Union County or elsewhere in that belt, put a metals test, including arsenic, inside your due diligence period. If a test comes back high, treatment options and costs are a question for a water treatment professional and the county health department.

Ponds and streams as horse water

Many farms let horses drink from a creek or pond. If you plan to change that, there is help. The NC Agriculture Cost Share Program is administered through local Soil and Water Conservation Districts, and it lists cost share at 75 or 90 percent of average cost for livestock exclusion fencing that keeps animals out of streams. That practice carries a 10-year maintenance period. Note the eligibility rule: the program is open to landowners or renters who have operated a bona fide farm for more than three years, so a new owner may need to wait. When buying, ask whether any fencing, troughs, or crossings were installed under a cost-share contract, and get a copy of the contract.

If the farm has a pond, find out who built the dam and whether it has ever been inspected. North Carolina's Dam Safety Act, in G.S. 143-215.25A, exempts many small and agricultural dams, but some exemptions don't apply if the state determines that a dam's failure could cause loss of life or significant property damage downstream. A pond dam above a road or a neighbor's house deserves a closer look.

Buffer rules near Lake Norman and other protected waters

The state's riparian buffer rules apply only in certain basins and watersheds. The NC Forest Service's list includes the Catawba River and its mainstem lakes, the Goose Creek watershed in Union and Mecklenburg counties, the Jordan Lake watershed, the Neuse River basin, the Randleman Lake watershed, and the Tar-Pamlico River basin.

Catawba mainstem lakes. Rule 15A NCAC 02B .0614 protects a 50-foot buffer along the Catawba's mainstem lakes, which it defines to include Lake Norman, Mountain Island Lake, and the North Carolina portion of Lake Wylie. Zone 1, the first 30 feet from full pond, stays undisturbed vegetation except for uses the rule allows. Zone 2, the next 20 feet, must stay stably vegetated. Existing uses that have been present and ongoing since June 30, 2001, including agriculture, are exempt for their footprint. For a buyer, one line in the rule matters most:

"Change of ownership through purchase or inheritance is not a change of use."

NC Office of Administrative Hearings, 15A NCAC 02B .0614

In other words, an existing pasture along the lake can stay a pasture after you buy it, but clearing new ground inside the buffer for a paddock is a different matter. If you're looking near the lake, see our post on keeping horses near Lake Norman in Cornelius.

Goose Creek watershed. Rules 15A NCAC 02B .0601 through .0608 protect Goose Creek, Stevens Creek, Paddle Branch, Duck Creek, and their tributaries to help sustain and recover the federally endangered Carolina heelsplitter. These rules include stream buffer requirements, so check with the state Division of Water Resources before clearing or fencing near those streams.

Outside these areas, counties and towns may still have their own stream setbacks. Ask the local planning office about any parcel with a creek.

Water questions to ask before you buy

How many wells are there, and what does each serve (house, barn, hydrants)?
Can I have the GW-1 construction record for each well?
When was the water last tested, and can I see the results?
Has any well run short in a dry summer?
Are hydrants frost-free, and where do the lines run?
Is any well, pond, or stream access shared with a neighbor, and is there a recorded agreement?
Was any fencing or watering system installed under a cost-share contract?
Who built the pond dam, and has it been inspected?

For the rest of the property checks, use our horse farm inspection checklist and our land for horses guide. Confirm the legal details for a specific parcel with a real estate attorney and the county health department.

If you'd like help sorting out water on a farm you're considering, contact us.

Sources

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Water on a North Carolina Horse Property: Wells, Ponds, and Rights

How North Carolina water law works on a farm

How much water a horse farm uses