Window 2026-07-01 → 2026-07-15 · 6 active flower rooms · substrate + climate from AROYA public API (stitched hourly, full-span) · generated 2026-07-15 20:35 UTC
Headline
Rooms audited
6
Facility mean dryback
12.2 pp
Facility mean VPD
1.40 kPa
Rooms w/ wide EC spread
6
Dryback is reported in absolute percentage points (daily VWC peak − trough), the primary crop-steering lever. Substrate (pore) EC is the steering output — its trajectory (stack early-flower → pull back in bulking → restack in ripening) matters more than any single value. Steering intent below is inferred from the data; the grower's configured targets could not be read this run (AROYA SPA session offline — see Data Quality).
Uneven zone EC flagged: Grow Room 7 (R&D), Grow Room 3, Grow Room 4, Grow Room 2, Grow Room 1, Grow Room 6 show ≥2 mS/cm spread between substrate zones over the window — check for channeling, dripper uniformity, or mixed-cultivar zone loading. This is the strongest drip-and-drain talking point in the data.
Per-room deep dive
Each room: substrate VWC (dryback shape), pore-EC by zone (steering output + zone uniformity), VPD, and air temperature — hourly over the full 14 days.
Grow Room 7 (R&D) #17033
VWC mean
33.3%
min 1.1 · max 60.7
Daily dryback
9.1 pp
peak-day 47.0 pp (absolute)
Shots / day
1.1
≥2pp VWC step-ups
Substrate EC
7.4
traj 12.5→3.6 (-8.9) ⚠️ wide zone spread
VPD mean
1.41
kPa
Air / Soil °F
76.7
soil 77.1 · RH 55.1% · CO₂ 1020
Grow Room 3 #18549
VWC mean
48.5%
min 32.4 · max 65.0
Daily dryback
18.0 pp
peak-day 28.6 pp (absolute)
Shots / day
2.0
≥2pp VWC step-ups
Substrate EC
4.8
traj 4.2→5.9 (+1.7) ⚠️ wide zone spread
VPD mean
1.69
kPa
Air / Soil °F
80.4
soil 77.5 · RH 52.5% · CO₂ 1210
Grow Room 4 #18825
VWC mean
43.5%
min 2.0 · max 63.1
Daily dryback
15.8 pp
peak-day 19.2 pp (absolute)
Shots / day
1.6
≥2pp VWC step-ups
Substrate EC
7.3
traj 8.0→4.1 (-3.9) ⚠️ wide zone spread
VPD mean
1.08
kPa
Air / Soil °F
71.5
soil 71.1 · RH 59.1% · CO₂ 1028
Grow Room 2 #18827
VWC mean
2.0%
min 0.9 · max 7.5
Daily dryback
1.0 pp
peak-day 6.6 pp (absolute)
Shots / day
0.1
≥2pp VWC step-ups
Substrate EC
9.2
traj 13.9→7.5 (-6.4) ⚠️ wide zone spread
VPD mean
1.69
kPa
Air / Soil °F
75.5
soil 77.2 · RH 44.5% · CO₂ 1234
Grow Room 1 #18947
VWC mean
46.5%
min 33.0 · max 60.9
Daily dryback
17.3 pp
peak-day 27.3 pp (absolute)
Shots / day
2.2
≥2pp VWC step-ups
Substrate EC
7.1
traj 7.0→7.7 (+0.7) ⚠️ wide zone spread
VPD mean
1.33
kPa
Air / Soil °F
77.6
soil 76.1 · RH 58.9% · CO₂ 1296
Grow Room 6 #19026
VWC mean
53.9%
min 46.4 · max 63.1
Daily dryback
12.2 pp
peak-day 15.2 pp (absolute)
Shots / day
2.5
≥2pp VWC step-ups
Substrate EC
6.4
traj 5.6→6.2 (+0.6) ⚠️ wide zone spread
VPD mean
1.19
kPa
Air / Soil °F
76.6
soil 75.5 · RH 62.0% · CO₂ 1143
Irrigation framing reference (P0–P3 day model)
P0 — Activation (lights-on → first shot; wait for transpiration to start). P1 — Ramp-up (small shots back to field capacity + first runoff). P2 — Maintenance (pulses holding VWC at FC, managing substrate EC via runoff). P3 — Dry-down (last shot → next morning; the primary steering lever, read as overnight dryback in absolute pp). Dryback benchmarks (absolute pp): veg 5–15 · early-flower/stretch 20–30 · bulking 12–18 · ripening 25–35. VPD (kPa): veg 0.8–1.1 · flower 1.0–1.4. Substrate EC (mS/cm): stacks into early flower, pulled back in bulking, restacked in ripening.
Data Quality & limitations
Source: AROYA public API room-chart endpoint, stitched into a continuous 14-day hourly series (2-day cap per request worked around). Coverage spans 2026-07-01 → 2026-07-15 for every room — full window.
Not available this run: harvest-group / cultivar metadata, per-room steering config, target ranges, and device-health — all live behind the AROYA SPA session, which was offline (expired token, no interactive login). Numbers above are measured environmental/substrate telemetry; they are not graded against the grower's configured guardrails because those could not be read.
Dryback uses a daily peak−trough absolute-pp proxy; true overnight (P3) dryback requires the lights-schedule from config. Shots/day are inferred from ≥2pp hourly VWC step-ups, not drip-volume events.
Facility ambiguity: today's "Balanced — Drip and Drain" meeting resolved to the Balanced LA org (3 active facilities); this report covers Greenlight - Pepsi 1 specifically. Confirm this is the site in question.