Hydrohistorian
Peaks Shadow LLC
Serves Ellicott.
Modelled boundary. EPA estimated this service area (Random Forest) rather than tracing a utility-supplied map; treat the edge as approximate. About 3 km².
Where the water comes from
| Facility | Kind | Water |
|---|---|---|
| NO 1 WELL | Well | Groundwater |
These are EPA's facility records, not DWR structures. Which decreed rights sit behind an intake is the next phase; nothing here is inferred.
DWR structures that name this system
Source Probable join · fetched 2026-10-06 · matched on DWR's recorded contact or an EPA intake name; verify on the dossier
No DWR structure on file records this system as its contact, and none of its EPA intakes matches a structure name in its districts. DWR records a contact on only a fraction of structures, and only for districts fetched from its live service, so this is absence of a record, not evidence of no rights.
Compliance record
Source Register of another agency · fetched 2026-10-07 · verify at EPA ECHO ↗
1 violation open now, none health-based. These are monitoring, reporting or notice requirements — a sample not taken, or a result not filed on time. They are real obligations, but they are not a finding about the water itself.
EPA's own summary: violations in 12 of the last 12 quarters. In violation for, in EPA's words: 1040=Nitrate; 2005=Endrin; 2010=BHC-GAMMA; 2015=Methoxychlor; 2020=Toxaphene; 2031=Dalapon; 2032=Diquat; 2033=Endothall; 2035=Di(2-ethylhexyl) adipate; 2036=OXAMYL; 2037=Simazine; 2039=Di(2-ethylhexyl) phthalate; 2040=Picloram; 2041=Dinoseb; 2042=Hexachlorocyclopentadiene; 2043=Aldicarb sulfoxide; 2044=Aldicarb sulfone; 2046=Carbofuran; 2047=Aldicarb; 2050=Atrazine; 2051=LASSO; 2065=Heptachlor; 2067=Heptachlor epoxide; 2105=2,4-D; 2110=2,4,5-TP; 2274=HEXACHLOROBENZENE; 2306=Benzo(a)pyrene; 2326=Pentachlorophenol; 2383=Total Polychlorinated Biphenyls (PCB); 2931=1,2-DIBROMO-3-CHLOROPROPANE; 2946=ETHYLENE DIBROMIDE; 2959=Chlordane; 4000=Gross Alpha, Excl. Radon and U; 4006=Combined Uranium; 7000=Consumer Confidence Rule. Currently: 7000=Consumer Confidence Rule.
What happened
All 3 violation records on file, grouped into the 3 distinct things EPA's codes describe. Dates are the compliance period the violation is filed against.
Rule: Consumer Confidence Report -- the annual report to customers.
Rule: Nitrate and nitrite.
Rule: Stage 1 Disinfectants and Disinfection Byproducts Rule.
Every violation record, as filed (3 of 3)
| Compliance period | What | About | Kind | Status | Measured |
|---|---|---|---|---|---|
| 2016-03-01 – 2016-03-31 | MCL, Average | Nitrate | health-based | returned to compliance (2016-09-01) | 10.89 MG/L (limit 10.0) |
| 2015-06-01 | Treatment Technique No Certif. Operator | DBP Stage 1 | health-based | returned to compliance (2016-05-09) | |
| 2009-07-01 | CCR Complete Failure to Report | Consumer Confidence Rule | other | open |
What the regulator did about it
39 enforcement actions on this system's federal record. In Colorado the state is the primacy agency, so most actions are the state's; EPA acts directly on tribal systems and when it steps in.
| Date | Action | By |
|---|---|---|
| 2026-04-01 | St Public Notif received PN/COD for FTM violations received, PNs received 03/27/26 and CODs received 04/01/26 (lfra 04/06/26); |
state |
| 2026-02-11 | St Compliance achieved Late reporting of SOCA from 3Y2023-2025 RTC through sample collected 12/30/25 and reported on 01/11/26 and 02/11/26 (lfra 05/14/26); |
state |
| 2026-01-30 | St Compliance achieved FTM 4000 in 6Y2020-2025 RTC through sample timely collected but late reported on 01/30/26 (lfra 02/09/26); |
state |
| 2026-01-26 | St Violation/Reminder Notice | state |
| 2026-01-26 | St Public Notif requested | state |
| 2026-01-26 | St Violation/Reminder Notice | state |
| 2026-01-26 | St Public Notif requested | state |
| 2026-01-26 | St Violation/Reminder Notice | state |
| 2026-01-26 | St Public Notif requested | state |
| 2026-01-26 | St Compliance achieved FTM 4006 RTC through timely collected late reported samples, reported 1/11/26 but per wiki if supplier reported before vio issuance, the issuance date = SOX date (lfra 02/09/26); |
state |
| 2025-10-27 | St Compliance achieved FTM LCR in 3Y2023-2025 RTC through samples that were timely collected but late reported on 10/27/25 (lfra 10/29/25); |
state |
| 2025-10-20 | St Violation/Reminder Notice | state |
| 2025-10-20 | St Public Notif requested | state |
| 2025-05-23 | St Compliance achieved FTM NO3 in 1Q2025 RTC through 2Q2025 sample collected 05/21/25 and reported 05/23/25 (lfra 08/14/25); |
state |
| 2025-04-14 | St Violation/Reminder Notice | state |
| 2025-04-14 | St Public Notif requested | state |
| 2022-03-31 | St Compliance achieved | state |
| 2022-01-04 | St Violation/Reminder Notice | state |
| 2022-01-04 | St Public Notif requested | state |
| 2019-12-26 | St Compliance achieved System sampled during 2017 to 2019 monitoring period. hpo 2/18/2020 |
state |
20 most recent of 39; the rest are on the ECHO report.
Lead and copper
The latest 90th-percentile lead result is 0.0004 mg/L (sampling period ending 2025-12-31) against an action level of 0.015 mg/L, below it. 7 results on file.
The action level is not a health limit: it is the level at which the rule requires a system to act (corrosion control, public education, and in some cases replacing lead service lines). Lead mostly enters water from household plumbing, so a system-wide percentile does not tell you what comes out of one tap.
Violation, enforcement and lead/copper records are EPA SDWIS federal reporting, fetched monthly; the summary is EPA ECHO. Code names come from EPA's own REF_CODE_VALUE table. SDWIS carries violations, not routine sample results — nitrate, disinfection by-product and PFAS values are not in it, and a clean record here means nothing was reported as a violation, not that nothing was ever detected. For what was measured, ask the system for its Consumer Confidence Report.
PFAS and lithium: EPA's UCMR 5 monitoring, 2023–2025
Source Register of another agency · fetched 2026-10-09 · verify at EPA UCMR occurrence data ↗
EPA did not sample this system under UCMR 5 (the rule covered every system serving more than 3,300 people and a drawn sample of smaller ones).
Common questions
Who provides drinking water in Calhan, Colorado?
Peaks Shadow LLC is the public water system serving 67 people in El Paso County, from groundwater. Its EPA public water system id is CO0121220.
Where does Peaks Shadow LLC get its water?
Peaks Shadow LLC reports groundwater as its primary source. EPA lists its source facilities as NO 1 WELL.
Does Peaks Shadow LLC have any drinking water violations?
EPA's compliance record shows no open health-based violations for Peaks Shadow LLC at the last monthly fetch. Older and non-health-based entries, if any, are listed on this page.
Places this system serves
Census places its EPA service-area boundary substantially covers. Each page lists every system serving that place.
Every provider in El Paso County.
The record
EPA SDWIS federal reporting as of 2026-10-06; the compliance record above is EPA's own, fetched monthly, and the ECHO report carries the rest. Report a problem →